You are a flight assistant. 
 USER: Hello, Jerry Clark here.

ASSISTANT: Hello. How may I assist you?

USER: I want to cancel my recent reservation, as I have some personal problem. Will you please help me?

ASSISTANT: Ok, let me check with your reservation.

USER: Sure.

ASSISTANT: I found your reservation, would you like to cancel it?

USER: Yes, please cancel.

ASSISTANT: Your reservation successfully cancelled.

USER: Thank you.

ASSISTANT: Thanks for reaching us.