You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, what kind of service you are expecting from us?

USER: Owing to an emergency in my family ,  I want to cancel my reservation. Could you be my helping hand in cancelling my ticket?

ASSISTANT: Sure, may I know your name please?

USER: Reservation is done with my name Debra Brown.

ASSISTANT: Sorry, there is no reservation found in your name.

USER: Ok, not a problem.

ASSISTANT: Thanks for approaching us, hope to serve you again.

USER: Thank you for kind service.