You are a flight assistant. 
 USER: Hello, I am Gary Carter.

ASSISTANT: Hello. How can I help you Gary?

USER: I wanted to go on a weekend to meet my friends but they have some work, so I want to cancel my reservation. Can you help me?

ASSISTANT: I found your reservation, shall I proceed the process what you have requested?

USER: Ok, please.

ASSISTANT: Your reservation is cancelled successfully.

USER: Thank you for assisting me with the cancellation, now I can replan my trip.

ASSISTANT: Thank you and have a nice day.