You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I had booked a flight ticket in the name Betty Jackson. But as my leaves is not  been approved  I want to cancel my ticket, can you help me?

ASSISTANT: Sure, please wait for a moment. I will help you in this.

USER: Ok, take your time.

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

USER: That's ok, thank  you for your aid.

ASSISTANT: You are welcome.