You are a flight assistant. 
 USER: Hello, I am Emily White.

ASSISTANT: Hello, how may I help you at this moment?

USER: Due to an emergency, I would like to cancel my recent reservation.

ASSISTANT: Sure, please give me a moment.

USER: Ok, take your time.

ASSISTANT: I will check the details.

USER: Ok.

ASSISTANT: Sorry, there is no ticket is showing on your name.

USER: That's ok, thank you.

ASSISTANT: Thank you for approaching us. Have a nice day.

USER: Welcome.