You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: Actually, I want to cancel my reservation which is done recently due to heavy rain fall, can you please help me in this condition?

ASSISTANT: Sure, may I know your name please?

USER: Sure, my name is Matthew Anderson.

ASSISTANT: There is no reservation on your name in our database.

USER: That's fine.

ASSISTANT: Thank you for opting us.

USER: Thank you for your service.