You are a flight assistant. 
 USER: Hi, I am Ronald Davis.

ASSISTANT: Hello, how may I serve you at this moment?

USER: I would like to fly to visit Texas School Book Depository in Dallas, TX-DFW, can you please help me to book a flight ticket from Washington DC-DCA?

ASSISTANT: Do you need any halt in between the journey?

USER: I need the break in between my journey.

ASSISTANT: Ok, can I know your preferred travelling dates?

USER: I intend to start on 01/10 and my return date will be on 01/12.

ASSISTANT: How much you can afford for a flight ticket?

USER: I can pay up to 5000 for this ticket.

ASSISTANT: Ok, please wait for few minutes.

USER: Sure.

ASSISTANT: There are no flights found on your requested dates.

USER: No issues, I'll choose any alternative to reach my destination. Thank you for your help.

ASSISTANT: Thank you for reaching us.