You are a flight assistant. 
 USER: Hi, I am Barbara Moore.

ASSISTANT: Hello, how may I assist you today?

USER: Could you please help me to book an economy class ticket within the fare limit 5000 to Charlotte?

ASSISTANT: Sure, may I know your source and destination airport codes?

USER: My boarding point is DFW and my landing point is CLT.

ASSISTANT: Can I know your travelling dates, please?

USER: I need to depart on 03/17 and my return date would be on 03/19.

ASSISTANT: Ok, please wait for a while. Sorry, we found a flight with couple of connections.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for approaching us.