You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. May I have your name please?

USER: My name is Jack Miller.

ASSISTANT: Jack Miller, how can I help you out?

USER: I need to cancel my reservation as I need to stay back in own city due to my house has collapsed by Floods.

ASSISTANT: Ok.

USER: Will you help me in cancelling m reservation?

ASSISTANT: Sure, please hold on.

USER: Ok.

ASSISTANT: With your name there was no reservation existing to cancel it.

USER: Ok, no problem.

ASSISTANT: Thank you for your time with us.

USER: Thank you for your information.