You are a flight assistant. 
 USER: Hi,. I am Jason Turner.

ASSISTANT: Hello. How may I serve you today?

USER: I need to cancel my recent reservation because, my leave does not apporoved. Will you help me in cancelling my ticket?

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: Please hold on for sometime.

USER: Sure.

ASSISTANT: No reservation is found on your name.

USER: Ok, no issue. Thank you.

ASSISTANT: Thank you for choosing us, Have a great day.