You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be your helping hand today?

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

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please provide your name to proceed further.

USER: Nancy Green here.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for your time, we did not find any reservation on your name to cancel it.

USER: Ok, no problem. Thank you for checking.

ASSISTANT: Thank you for choosing us.