You are a flight assistant. 
 USER: Hello. I want to cancel my reservation.

ASSISTANT: Hello, how can I assist you?

USER: You can cancel the reservation on the name of Marry Hall.

ASSISTANT: Ok, Please wait.

USER: Ok.

ASSISTANT: Thanks for waiting, there is no reservation with your details.

USER: Ok, no an issue. Thanks for your kind information.

ASSISTANT: Thanks for choosing us.