You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

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

ASSISTANT: Let me know your name.

USER: Yes, I am Edward Roberts.

ASSISTANT: Sorry, no reservation found by your name.

USER: Ok, not an problem.

ASSISTANT: Thank you.

USER: Thank you for your information.