You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Gary Lopez.

ASSISTANT: In which way I can help you at this moment?

USER: I am planning to cancel my recent reservation, due to health issue. Can you please cancel my ticket?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Please wait a moment, I will check your reservation status.

USER: Sure, I will wait for your reply.

ASSISTANT: There is no previous reservation available in your name.

USER: That's fine. Thank you for your service.

ASSISTANT: Thank you for choosing us. have a good day.