You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you for today?

USER: I am Susan Turner. Please change my reservation to new locations?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Yes, Susan I have found a reservation under your name. Can you provide your modified dates of journey?

USER: Ok, my journey dates are 03/02 and 03/04.

ASSISTANT: Ok, provide your modified respective location points to your journey.

USER: Sure, my locations are LGA to ATL.

ASSISTANT: Sorry Susan, there is no flights which can reach out your destination point.

USER: It's ok, thanks for checking.

ASSISTANT: My pleasure, thank you for reaching out here.