You are a flight assistant. 
 USER: Hello, I am Ruth Davis.

ASSISTANT: Hello, what sort of help are you seeking from me?

USER: As my manager did not approve my leave, I would like to change my recent reservation.

ASSISTANT: Ok, I can help you in that.

USER: Thank you.

ASSISTANT: Please wait for a while.

USER: Sure, take your time.

ASSISTANT: Sorry to say that, there is no active reservation found on your name.

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

ASSISTANT: Thanks for consulting us, have a good day.

USER: Welcome.