You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Carolyn Jones here. I want to change my existing reservation, can you please help me in that?

ASSISTANT: Ok, I will help you with that.

USER: Sure, I will wait for your response.

ASSISTANT: I am sorry there are no reservation been done on our name.

USER: That's ok, no problem. Anyway thank you for the information.

ASSISTANT: Thank you for connecting with our agency.