You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

USER: The planned trip got cancelled due to an important work, can you please assist me with flight ticket cancellation?

ASSISTANT: Sure, I will help you with that.

USER: Ok.

ASSISTANT: Let me know your name to check your reservation?

USER: Check under the name Raymond Jones.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for waiting. I have checked in reservation list to cancel your ticket, but could not find any reservation with your name.

USER: That's ok, thank you.

ASSISTANT: Thank you for choosing us.