You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Can you help me to cancel my recent reservation because my health condition was not good?

ASSISTANT: Sure, may I know your name please?

USER: I am Timothy Mitchell.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: We did not find any reservation on your given name.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you.