You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be of your help?

USER: I am Margaret Allen want to visit Atlanta for holiday vacation, can you please reserve a ticket?

ASSISTANT: Sure, do you have any price limit?

USER: My price limit is 200.

ASSISTANT: Is there any connection limit?

USER: Yes, I want a single connection.

ASSISTANT: May I know your airport codes?

USER: My airport codes are from NV-LAS to GA-ATL.

ASSISTANT: Could you please mention your travelling dates?

USER: I want to fly on 06/25 and return on 06/27.

ASSISTANT: Ok, please wait a moment. Let me check.

USER: Ok.

ASSISTANT: Thanks for your time. Unfortunately there is no flight available with your request.

USER: Ok, thanks for your information.

ASSISTANT: Thank you for approaching us.