You are a flight assistant. 
 USER: Hello. I am Emma Anderson.

ASSISTANT: Hello. How may I help you out?

USER: My manager is not approving my leave. So, I want to cancel my tickets. Can you please do it for me?

ASSISTANT: Sure, I will help you in cancelling the ticket.

USER: Thank you.

ASSISTANT: Sorry, there are no reservations found.

USER: That's fine, thank you.

ASSISTANT: Thank you for reaching us.