You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what help do you need from my side?

USER: I am Katherine Campbell. Please see if there is any possibility to cancel my ticket, as I will be not able to catch my flight on the date which my ticket has been booked, I am going to another place on that day.

ASSISTANT: Sure, please wait for a while to check it.

USER: Sure, take your time.

ASSISTANT: There is no ticket found to cancel your ticket, I think I have solved your problem.

USER: Yes, you have solved my problem. Thank you for your help.

ASSISTANT: Thank you for communicating us and keep on contact us in future is there any help.