You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: My name is Christopher Lewis. Would it be possible to change my reservation, which I have done with my name?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no active reservation on your name in our records.

USER: Not an issue, thank you for the information.

ASSISTANT: Thank you for choosing us.