You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. May I know your good name please?

USER: Larry Hill here.

ASSISTANT: Ok, how may I assist you now?

USER: Due to some reason, I want to cancel my reservation. Can you help me?

ASSISTANT: Sure, I can help you for that. Please wait a minute, I will go through your reservation and proceed further.

USER: Sure.

ASSISTANT: We did not find any reservation on your name to cancel it.

USER: No problem, Thanks for the information.

ASSISTANT: Thanks for contacting us, have a nice day.