You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

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: May I know you your name?

USER: Sure, I am Melissa King.

ASSISTANT: Sorry, no reservation found with your name.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for choosing us.