You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assess you?

USER: I want to cancel my reservation due to less man power in the company where I work, I am overloaded with many works.

ASSISTANT: Ok, may I know the name on which the ticket has been booked?

USER: The ticket has been booked in the name of David King.

ASSISTANT: I am sorry to inform you that there are no active reservations with your name.

USER: That's fine, may be father has cancelled that reservation.

ASSISTANT: Thank you for contacting our agency.

USER: You are welcome.

ASSISTANT: Have a good day.