You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Owning to an emergency, I want to cancel my recent reservation. Can you please help me out?

ASSISTANT: Sure, I will help you with that. May I know your name please?

USER: Sure, my name is Robert Mitchell.

ASSISTANT: Sorry Robert Mitchell, I did not find your name in our reservation records.

USER: Ok, no problem.

ASSISTANT: Thank you for availing our service.

USER: Thank you for your information.