You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you now?

USER: I am Jason Anderson. I want to cancel my ticket because my examination is cancelled for some reasons. Can you please help me in cancelling my ticket?

ASSISTANT: Ok. Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: It's ok, anyway's thank you for checking for my reservation.

ASSISTANT: Thank you for approaching us, have a nice day.

USER: You are welcome.