You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. May I know what kind of service you are looking for?

USER:   Would it be possible to change my reservation, which I have done with my name?

ASSISTANT: Sure, I can change your reservation right now. Before that I need to know your good name please?

USER: My name is Deborah Parker.

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

USER: Ok, take your time.

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

USER: That's ok, thank you for the response.

ASSISTANT: Thanks for reaching us, wish you a great day.