You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I be of assistance to you?

USER: I have booked a ticket last week but suddenly my meeting has cancelled.

ASSISTANT: Ok.

USER: Is there any chance to cancel my reservation?

ASSISTANT: Absolutely there is a chance of cancelling you reservation. To proceed your request I need the name on which the reservation has been confirmed. Can you please provide it?

USER: Ok, I am Gregory Wright.

ASSISTANT: Yes, we found your reservation to cancel it. Can I proceed the process?

USER: Yes, please proceed.

ASSISTANT: Successfully your reservation is cancelled.

USER: Thank you for your help.

ASSISTANT: Thank you and have a nice day.