You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

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

ASSISTANT: Sure, may I know your travelling dates?

USER: I want to travel in the flight on Sept 07 and Sept 09.

ASSISTANT: May I know your name?

USER: Justin Smith.

ASSISTANT: Do you need a connecting flight?

USER: I want to have a connecting flight.

ASSISTANT: May I know your other specifications?

USER: No.

ASSISTANT: There is a flight of frontier airline, flight number 1011 with the fare of 200.

USER: Proceed to booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.