You are a flight assistant. 
 USER: Hello. I am Cynthia King.

ASSISTANT: Hello, How can I serve you?

USER: As my tour with my friends has been cancelled due to some problems, help me in cancelling my reservation.

ASSISTANT: Sure, Please wait a second.

USER: Sure.

ASSISTANT: Sorry, No reservation found on your name. Thank you for availing us.

USER: Its ok, thank you for your help.