You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am William Garcia.

ASSISTANT: How may I amend you today?

USER: I just want to cancel my recent reservation, due to my baseball tournament has been cancelled.

ASSISTANT: Ok.

USER: Can you please cancel my ticket?

ASSISTANT: Sure. Please wait, I will check and revert to you.

USER: Sure.

ASSISTANT: I am happy to say you, we found a reservation on your name. Shall I cancel?

USER: Ok, proceed.

ASSISTANT: Your reservation is cancelled.

USER: Thank you for your kind help.

ASSISTANT: Thank you.