You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you?

USER: I want to cancel my recent ticket booking due to office work that my manager did not approve my leaves, so can you please cancel it?

ASSISTANT: Sure, please mention your good name.

USER: I made a reservation on the name Sarah Mitchell.

ASSISTANT: Give me sometime to check and get back to you.

USER: Ok.

ASSISTANT: Thank you for your time. There is no reservation found according to your name.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for picking us.