You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Larry Gonzalez. I want to cancel my reservation, can you help in canceling my reservation?

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for your time, there is no reservation found on your name.

USER: Than's fine. Thanks for helping me.

ASSISTANT: Ok, thanks for contacting us.