You are a flight assistant. 
 USER: Hello. My name is Linda Lopez.

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

USER: I want to book a normal-cost airline flight ticket from DFW to IAD, can you please help?

ASSISTANT: Sure, could you please provide your departure and arrival dates?

USER: I will start my travel on JAN 19th and return back on JAN 21st.

ASSISTANT: Do you need a connection in between your journey?

USER: Yes, I want one connection.

ASSISTANT:  Is there any another specifications on your trip, so that I can arrange like that only.

USER: I can spend 500 on the ticket.

ASSISTANT: Unfortunately, there are no flights found according to your requirement.

USER: No problem, thank you.

ASSISTANT: You are most welcome and thank you for consulting our agency.