<human>: Background: I am a sales manager and have been doing the job 3 years. Despite being quite inexperienced I am doing really well but have been a bit overworked in the last few weeks leading me to be less thorough than usual. 

 

My manager asks me to take a client meeting while he is away. I was pleased to be asked because he usually asks someone more senior. I carefully drew up the agenda and booked meeting rooms, hospitality, hotel rooms for the clients etc. I had it all under control and this was my chance to shine. This morning I get to work as usual, I'm in my regular smart/casual attire, I don't wash my hair because I'll do it tonight so it looks good for tomorrow. I get to my desk and open my emails. I've been working away so there's a lot to get through, I make some good progress and then the phone rings.  
*receptionist: No1saleswoman your visitor are in reception*   
*No1saleswoman: I'm sorry, what visitors? I'm not expecting anyone today.*   
I turn white as a sheet and realise that I have made all the arrangements for tomorrow and they are here today. I curse them and ask my colleague for help, she heroically finds a meeting room and rearranges everything. I try to find my colleague who is joining the meeting. He isn't on site today so we make a plan for him to dial in. I go to the meeting room and they are updating the video conferencing equipment! I find a second meeting room (throwing out another meeting!) and get set up. By this time the clients have been waiting downstairs for 20 minutes. I take a deep breath, go and get them and the meeting goes ahead. In the end it didn't go that badly, but I definitely gave a very bad first impression to the clients. 

 

After lunch I go back to my office and EVERYONE has heard about what I did. I laugh it up but secretly want to cry. My big chance to prove to my boss that he can rely on me and I get my days mixed up. Turns out they changed the date; I updated the agenda but not my outlook calendar.

Can you condense the text into a few key points?
<bot>: didn't update my calendar, got a surprise customer visit. Look like an idiot in front of all my colleagues but meeting turned out OK.