You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I am Dorothy Green. I had planned a business meeting with my client, but it was cancelled due to some reasons.

ASSISTANT: Ok, give me a minute.

USER: Can you cancel my recent reservation?

ASSISTANT: Sure, I will help you. Sorry, there is no reservation found under your name.

USER: That's ok.

ASSISTANT: Thank you for opting us.

USER: Anyways, thank you for your help.