You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I support 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 please help me in canceling my reservation?

ASSISTANT: Sure, let me know your name to check with the reservation list and revert you.

USER: My name is Charles Scott.

ASSISTANT: Ok, please give me a moment. We could not find any reservation by the name you provided.

USER: No problem, thank you.

ASSISTANT: Thank you for choosing us.