You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I want to cancel my existing reservation, as most of my friends are not coming for the vacation.

ASSISTANT: Ok. May I know your name?

USER: I am Kenneth Phillips.

ASSISTANT: Ok. Please wait a minute. I will check and let you know.

USER: Sure.

ASSISTANT: There is no reservation with your name.

USER: That's ok. Thank you for your time.

ASSISTANT: It's my pleasure.