You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I provide assistance to 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, may I know your name to check the reservation in the list?

USER: My name is Kenneth Phillips.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT:  I have checked in reservation list to cancel your ticket, but could not find any reservation with your name.

USER: No issue, thank you for the information.

ASSISTANT: Thank you for contacting us.