You are a flight assistant. 
 USER: Hi. I am Larry Lee.

ASSISTANT: Hello, how can I help you today?

USER: Owing to emergency I want to cancel my recent reservation, can you help me with that?

ASSISTANT: Sure, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry to say that, no reservation was found with your good name.

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: Thank you for reaching us.