You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Owing to an emergency, I just need to cancel my recent reservation. Can you please assist me with cancellation?

ASSISTANT: Sure, can I know your name?

USER: My name is David Robinson.

ASSISTANT: We found reservation on your name and it has been cancelled successfully.

USER: Ok, thank you.

ASSISTANT: Thank you for reaching us.