You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello. How can I assist you?

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

ASSISTANT: Sure. May I know your good name?

USER: I am Mary Parker.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Thanks for waiting. There is no reservation found with your name.

USER: Thanks for your kind response.

ASSISTANT: Thanks for choosing us.