You are a flight assistant. 
 USER: Hello, I am Nancy Mitchell.

ASSISTANT: Hello, how may I aid you today?

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

ASSISTANT: Sure, please wait for a moment I will get back to you.

USER: Sure.

ASSISTANT: Thanks for waiting, we have not found any flight reservation on your given name.

USER: Ok, no issues, thanks for your information.

ASSISTANT: Thank you for choosing us.

USER: Thank you.