You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know your name please?

USER: I am Jeffrey Rodriguez.

ASSISTANT: How can I oblige you Jeffrey Rodriguez?

USER: I planned to go for a trip but my manager not approved my leave at the last moment, so I want to cancel my reservation. Can you help me to cancel my ticket?

ASSISTANT: Sure, we are here to make your work easy.

USER: Ok.

ASSISTANT: Please give me a minute.

USER: Sure.

ASSISTANT: I have checked the reservation list to cancel your ticket, but we could not find any reservation on your name.

USER: Ok, not an issue. Thanks for informing me.

ASSISTANT: Thanks for availing our service. We hope to serve you again.