You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, What kind of help are you expecting from our side?

USER: I am Dorothy Lopez. I want to cancel my recent reservation, can you please help me?

ASSISTANT: Sure, I can help you in that.

USER: Thank you.

ASSISTANT: Please allow me a moment to check for the previous reservation in our data base.

USER: Sure, take your own time.

ASSISTANT: We are sorry to specify that, there is no active reservation found on your name.

USER: No problem, thank you for checking.

ASSISTANT: Thanks for contacting us, have a great day.