You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I am planning to cancel my ticket because, my sister came home suddenly. I would like to spend time with her. So, can you help me in cancelling my ticket?

ASSISTANT: Sure, we are here to help you. May I know your name?

USER: Sure, I am Jason Robinson.

ASSISTANT: Ok, wait for some time.

USER: Sure.

ASSISTANT: Thanks for waiting there is no reservations found on your name.

USER: Ok. Thank you.

ASSISTANT: Thanks for choosing us.