You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Myself Jerry Nelson.

ASSISTANT: Nice to know you, Jerry.

USER: I am frustrated with your service because your agent has booked a ticket on wrong date, so I want to cancel my reservation.

ASSISTANT: Sorry for that, I will help you in cancelling. Please wait for a while.

USER: Ok.

ASSISTANT: There is no reservation found on your name, Jerry. I think there is no need to frustrate now.

USER: Ok, thank you.

ASSISTANT: Welcome, thank you for choosing us.