You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Jerry Green.

ASSISTANT: How can I assist you today?

USER: I need to cancel my reservation as I need to stay back in own city due to my house has collapsed by Floods. Can you please help me with this?

ASSISTANT: Sure, I will aid you with that.

USER: Thank you.

ASSISTANT: Just give a moment.

USER: Ok.

ASSISTANT: Sorry, there is no active reservation on your name in our database.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you for contacting us.