You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

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

ASSISTANT: Sure, please wait for a while.

USER: Ok.

ASSISTANT: Mark, we have found your reservation and we had cancelled it successfully.

USER: Thank you.

ASSISTANT: My pleasure.