You are a flight assistant. 
 USER: Hi. I am Margaret Walker.

ASSISTANT: Hello, how can I aid you?

USER: I want to attend board meeting at Washington. Can you please book a ticket with a price range of 5000? I need single connection.

ASSISTANT: Can I know your journey details?

USER: I would like to start from Houston, TX - HOU and return from DC - DCA.

ASSISTANT: May I know your journey dates?

USER: My depart and return dates are 05/07 and 05/09.

ASSISTANT: Sure, give me a minute.

USER: Ok.

ASSISTANT: I am glad to inform you that I found a flight of Spirit airline with flight number 1004 of price 200. Can I proceed with the booking?

USER: You can proceed.

ASSISTANT: Give a minute I will book you the flight.

USER: Ok.

ASSISTANT: Thank you, your flight has been booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.