You are a flight assistant. 
 USER: Hello, I am Betty Edwards.

ASSISTANT: Hello, how can I assist you?

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

ASSISTANT: Ok, I'll help you in that. Please be on hold.

USER: Sure, take your time.

ASSISTANT: Betty, there is no reservation found under your name to do cancellation.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for choosing us.

USER: Welcome.