You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you now?

USER: Can you please book a ticket for me as I am planning to meet my friend at DCA?

ASSISTANT: Sure, I will assist you. Please share your journey dates that you prefer to travel?

USER: Journey dates are Oct 22 to Oct 24.

ASSISTANT: Do you require any stopovers in your journey?

USER: Yes, I need a connecting flight.

ASSISTANT: Let me know your boarding point please.

USER: Origin code is Houston, HOU.

ASSISTANT: Will you share your name to book a flight ticket?

USER: I am Nicole Roberts.

ASSISTANT: Please hold on.

USER: Sure.

ASSISTANT: Nicole Roberts, thanks for waiting. You have no flights to travel on your particular days of journey.

USER: No problem. Thank you.

ASSISTANT: Thank you for making us to serve you today.