You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Please help me in cancelling my recent reservation.

ASSISTANT: Sure, I am here to help you. Can I have your good name?

USER: Barbara Collins here.

ASSISTANT: Sorry, there is no active reservation on your name in our records.

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

ASSISTANT: Thank you for contacting us.