You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am James Campbell.

ASSISTANT: How may I aid you?

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

ASSISTANT: Sure, I am glad to help you.

USER: Thank you.

ASSISTANT: Sorry, there are no reservation found on your name.

USER: That's ok. Anyways, thank you.

ASSISTANT: Thank you for reaching us.