You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: I am Helen Martinez. I want to book a flight ticket to Washington, DC-DCA from Houston, TX-HOU. Can you please help me?

ASSISTANT: Sure, I am happy to help you. Can I know your dates of journey please?

USER: My journey dates are from 11/07 to 11/09.

ASSISTANT: Do you have any specifications?

USER: I need single connection flight. My price is 200.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: We found a flight with Hawaiian airlines, flight number is 1013 with one connection and price is 100.

USER: Ok, you can proceed for booking.

ASSISTANT: Ok, your ticket has been booked.

USER: Thanks for your help.

ASSISTANT: Thanks for choosing us.