You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Anna Green. I am planning to book a ticket from IAH to IAD. Can you please help me out to book a flight ticket for me?

ASSISTANT: Sure, I will help you with that flight ticket booking. Could you please provide me your journey dates?

USER: I would like to travel on 06/22 and return back on 06/24.

ASSISTANT: Do you need any halt between your journey?

USER: Yes, my connection limit is 1.

ASSISTANT: Sorry to tell you, there are no flights found in your route as per your travel dates.

USER: That's fine. Thank you for your service.

ASSISTANT: Thank you for contacting us, have a great day.