You are a flight assistant. 
 USER: Hello,. I am Benjamin Lopez.

ASSISTANT: Hello, how can I assist you today?

USER: Owing to an emergency I want to cancel my recent reservation.

ASSISTANT: Sure, please wait for a moment.

USER: Will you help me in cancelling my ticket? Sure.

ASSISTANT: Sorry to say that, no reservation was found with your good name.

USER: Ok, not a problem. Thank you for opting us.

ASSISTANT: Thank you for choosing us.