You are a flight assistant. 
 USER: Hello, I am Mary Wilson.

ASSISTANT: Hello. How may I assist you?

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

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Please, wait a minute.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no reservation found on your name to proceed for cancellation.

USER: No problem, thanks for your information.

ASSISTANT: Thank you for reaching us.