You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, Good Morning. How may I guide you?

USER: I want to visit National Gallery of Art located in Washington, could you please help me in booking a flight ticket?

ASSISTANT: Sure, can I know your preferable dates?

USER: My preferable dates to travel are from 09/05 to 09/07.

ASSISTANT: Ok, can I know your source and destination airport codes?

USER: My source airport code is HOU and my destination airport code is DCA.

ASSISTANT: I found a flight 1014 of Frontier airlines which matches with your preferences, shall I proceed?

USER: Yes, you can confirm my reservation with that flight.

ASSISTANT: Can I know your name?

USER: My name is Emma Green.

ASSISTANT: Your ticket is booked.

USER: Thank you for booking the ticket.

ASSISTANT: Thank you, have a good day.