You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I need to book a flight ticket from DCA to IAH, can you help me in booking a flight ticket?

ASSISTANT: Sure, I will help you. May I know your name?

USER: Sure, Christopher Wright here.

ASSISTANT: Thank you. May I know your travel dates?

USER: Sure, my journey dates are Jan 5 and Jan 7.

ASSISTANT: Sure. Do you have any connection limit preference for this trip?

USER: I prefer maximum one connection.

ASSISTANT: Ok. Are you looking for any other help from my side please?

USER: I would prefer depart and return time at afternoon.

ASSISTANT: There is a flight having single connection with UA Airlines and the ticket fare is 100 only in economy class. Flight will take-off at 18:00 hours and arrives at 15:00 hours. Shall I book the ticket for you?

USER: Yes, you can.

ASSISTANT: Your ticket is booked with the flight-1022.

USER: Thank you for your assistance.

ASSISTANT: You are most welcome.