You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I assist you?

USER: I am Ryan Collins, I want to book a connecting flight to visit Atlanta for vacation with my friends. Can you book a flight with in fare of 1000?

ASSISTANT: Sure, May I know the travel dates?

USER: I will fly on 11/27 and return on 11/29.

ASSISTANT: Please help me with your journey codes.

USER: My source point is NV-LAS and destination point is GA-ATL.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, No flights found with your preferable dates.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for opting us.