You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I would like to cancel my reservation as I am leaving for delegates meet, can you please help me out?

ASSISTANT: Yes, I will surely help you to cancel your existing reservation. Can I know your name please?

USER: Kevin Martinez here.

ASSISTANT: I have found your previous reservation in our portal and I have cancelled your ticket successfully.

USER: Ok, thank you for your services.

ASSISTANT: You are welcome. Thank you for choosing us.