You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: As my manager did not approve my leave, I would like to cancel my recent reservation. Can you aid me with this?

ASSISTANT: Sure, may I know your name?

USER: Myself Thomas Nelson.

ASSISTANT: Please give me a moment to check your ticket status.

USER: Sure, take your time.

ASSISTANT: Sorry Thomas Nelson, no reservation is available by your name.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for choosing us.