You are a flight assistant. 
 USER: Hello, I am Angela Nelson.

ASSISTANT: Hello, how may I assist you?

USER: Can you make a reservation from DEN to IAD for me?

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

USER: I am planning to start on 11/15 and return back on 11/17.

ASSISTANT: Ok, hold on for a moment. Let me check the best flight for you.

USER: Make sure that connection limit is 1.

ASSISTANT: I found a flight for you with JetBlue airline and it costs you 800. Shall I proceed?

USER: No, I want with 200.

ASSISTANT: Sorry Angela, there are no flights available with the budget of 200.

USER: No issues. Thank you for checking.

ASSISTANT: Welcome, thank you for choosing us. Have a great day.