You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: I want to cancel my reservation which is done recently, can you please help me?

ASSISTANT: Sure, may I know your good name please?

USER: Ok, my name is Larry Williams.

ASSISTANT: Please give me a moment to check with your details.

USER: Sure, I will wait.

ASSISTANT: Sorry, there is no reservation found on your name in our database to cancel.

USER: That's fine. Anyways, thank you for your service.

ASSISTANT: Thank you for approaching us.