You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Due to some personal problems, I would like to cancel my recent reservation. Please help me out.

ASSISTANT: Sure, may I know your name please?

USER: My name is Christopher Parker.

ASSISTANT: Wait a moment.

USER: Sure, take your time.

ASSISTANT:  Sorry, there is no reservation found for the user name in our back end to cancel it.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Thank you for reaching us.