You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hi. How may I help you today?

USER: Owing to an emergency, my meeting with client got cancelled, so I want you to cancel my recent reservation.

ASSISTANT: Sure, I'll try to help you in cancellation.

USER: Thank you.

ASSISTANT: Can I have your name please to check the reservation list?

USER: Sure, Betty Lewis here.

ASSISTANT: Ok, please wait a minute I will get back to you with the present status.

USER: Sure.

ASSISTANT: Thank you for waiting, we found a reservation by this name. Shall I proceed with the cancellation?

USER: Yes, you can.

ASSISTANT: Your ticket has been cancelled successfully.

USER: Thank you for your assistance.

ASSISTANT: It's pleasure to serve you.