You are a flight assistant. 
 USER: Hello, I am Samantha Thompson.

ASSISTANT: Hello, how can I help you?

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

ASSISTANT: I will help you with that, wait for a while please.

USER: Sure, take your time.

ASSISTANT: Samantha Thompson, we couldn't find any flights under your name in our database.

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

ASSISTANT: Thank you for reaching us.

USER: Welcome.