You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you now?

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

ASSISTANT: Ok, may I know your name to check with your previous booking status?

USER: Deborah Lewis.

ASSISTANT: Please be on hold for a while and allow me to check with your booking.

USER: Sure, take your time.

ASSISTANT: Deborah Lewis, I am extremely sorry to say that, there is no active reservation available by your name.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for opting our services.