You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what help are you expecting from our service?

USER: William Walker here. Unfortunately, my Shuttle tournament is cancelled.So I want to cancel my reservation. Can you please help me for that?

ASSISTANT: Sure, I will help you with that.

USER: Ok.

ASSISTANT: Please give me a minute to check  the details. Sorry to inform you that there is no ticket booked on your name to cancel.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for approaching us. Have a amazing day.