You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: I want to cancel my recent reservation due to my interview got preponed. Can you help me in cancel the reservation?

ASSISTANT: Sure, can you please provide your name?

USER:  Sure,I am Jason Young.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Thank you for waiting. Unfortunately we found no reservation with your name.

USER: Thank you for your service.

ASSISTANT: Thank you for opting us and have a nice day.