You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you now?

USER: I am Dorothy Thompson, I need to cancel my reservation as my schedule got cancelled.

ASSISTANT: Sure, I will help you with cancelling your reservation.

USER: Thank you.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: Sorry Dorothy Thompson, no reservation has found under your name.

USER: It's ok, anyway thank you for the help.

ASSISTANT: Thank you for choosing us.