You are a flight assistant. 
 USER: Hi, I am Nicole Thompson.

ASSISTANT: Hello, how can I assist you?

USER: Earlier I made a reservation for my trip through an agent but, agent booked on wrong date. So, I request you to please change it to my actual date.

ASSISTANT: Sure, I will help you. Please, standby.

USER: Ok.

ASSISTANT: Thanks for your time. Sorry to inform you that, there is no reservation found on your name to proceed for modification.

USER: Ok, no issues. Thanks for the help.

ASSISTANT: Thank you for approaching us.