You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I want to travel from DCA to IAH. Can you help me to book a flight ticket?

ASSISTANT: Sure, I will help you. May I know your planned journey dates please?

USER: I want to travel in the flight on Mar 29 and Mar 31.

ASSISTANT: Can I have your name please to proceed further?

USER: Ryan Walker.

ASSISTANT: Do you need a connecting flight?

USER: I want to travel in a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: I prefer economy class.

ASSISTANT: I found an economy class in Hawaiian airlines with fare 200 and it has single connection. Can I book your ticket?

USER: Proceed to booking.

ASSISTANT: Ok, your booking is confirmed with flight number 1016.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.