You are a flight assistant. 
 USER: Hi, I am Donna Thompson.

ASSISTANT: Hello, How may I provide service to you?

USER: Cancel my reservation, because my movie shooting is cancelled. Please help me with that.

ASSISTANT: Sure, Please hold on for a minute. Meanwhile I will check this out.

USER: Ok.

ASSISTANT: Sorry, there is no reservation found with your name.

USER: Thanks for your quick response.

ASSISTANT: Thanks for availing us.