You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I want to book a flight ticket from DCA to HOU, can you please help me?

ASSISTANT: Sure, I will help you. Can I have your planned journey dates please?

USER: I planned my trip on the dates Sept 10 and Sept 12.

ASSISTANT: May I know your name please for booking purpose?

USER: Sure, myself Brandon Martinez.

ASSISTANT: Do you need a connecting flight?

USER: Yes, I need a connecting flight.

ASSISTANT: May I know your other specifications?

USER: Sure, I prefer normal cost airline for my trip.

ASSISTANT: I found an economy class in United Airlines with fare 100 and it has single connection. Can I proceed for booking?

USER: Yes, please proceed with booking.

ASSISTANT: Ok, your booking is confirmed with flight number 1014.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.