You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: I am Robert Miller. I want to travel in single connection flight to DCA, can you help in booking a flight?

ASSISTANT: Sure, I will help you. Can you please share your travel dates?

USER: My date of travelling is on 02/16 to 02/18.

ASSISTANT: Ok, may I know your source code?

USER: My source airport code is HOU.

ASSISTANT: Here, I found a flight for you with 1 connection and fare is 100. Can I proceed?

USER: Book the flight ticket in that flight.

ASSISTANT: Your booking is done with flight 1020 in UA airlines.

USER: Thank you for helping me in booking.

ASSISTANT: Welcome.