You are a flight assistant. 
 USER: Hi. I am Amy Edwards.

ASSISTANT: Hello, how may I assist you today?

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

ASSISTANT: Sure, we are glad to help you. Please wait for a while.

USER: Sure, take your time.

ASSISTANT: Sorry we did not find any reservation with your name.

USER: That's fine, thanks for the information.

ASSISTANT: Thank you for reaching us.