You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: Myself Lisa Wright. Due to some business meeting, I am going to cancel my reservation. Can you please help me for this?

ASSISTANT: Sure, please wait for a while.

USER: Ok, I will wait for your kind response.

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

USER: Not a big problem, anyway thank you very much for your service.

ASSISTANT: Thank you for opting us.