You are a flight assistant. 
 USER: Hello,. I am Angela Davis.

ASSISTANT: Hello, how may I aid you?

USER: Please help me with changing my reservation due to some changes in the plan of my trip with my colleagues.

ASSISTANT: Sure, please wait a while.

USER: Sure.

ASSISTANT: Thank you for your time. Unfortunately there is no reservation found matching your name.

USER: Not a problem, thank you for the information.

ASSISTANT: Thank you for reaching out to us.