You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I render you today?

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?

USER: My name is Brian Garcia.

ASSISTANT: Ok, please be on hold.

USER: Ok.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: No worries, thank you.

ASSISTANT: Thank you for reaching us.