You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, May I know your name please?

USER: I am Pamela Mitchell.

ASSISTANT: What help can I do for you?

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

ASSISTANT: Sure, please wait for a moment.

USER: Ok.

ASSISTANT: Thanks for waiting. Sorry to inform that, there is no reservation found with your name.

USER: Ok, no problem. Thanks for your kind response.

ASSISTANT: Thanks for approaching us.