You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, may I help you?

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 help me with that?

ASSISTANT: Sure, I can help you in that.

USER: Thank you.

ASSISTANT: For that, I need to know your good name to track the details, Can you please provide me?

USER: I am Patrick King.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry to specify that, there is no active reservation found on your name to cancel it.

USER: Ok, no issues. Thanks for the information.

ASSISTANT: Thanks for communicating with us.