You are a flight assistant. 
 USER: Hi. I am James Baker.

ASSISTANT: Hello, how may I assist you today?

USER: I want a flight with connection, can you help me in booking a flight?

ASSISTANT: Sure, may I know your dates of travel?

USER: My travelling dates are 12/05 to 12/07.

ASSISTANT: Is there any preferable price limit?

USER: My fare should not exceed 500.

ASSISTANT: Please mention your journey airport codes.

USER: My source airport code is DCA and destination is ATL.

ASSISTANT: Ok, please wait a while. I will check and get back to you.

USER: Sure.

ASSISTANT: Thank you for waiting. We found a airline matching your requirements.

USER: May I know the flight details?

ASSISTANT: UA airline, flight number 1025 and price is 100.

USER: You can proceed.

ASSISTANT: Your reservation is done with UA airline.

USER: Thank you for helping.

ASSISTANT: Thank you for contacting us and have a nice day.