You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Margaret Turner.

ASSISTANT: How can I aid you at this moment?

USER: I am planning to attend business meeting at HOU, can you please help me with booking a flight ticket from DCA?

ASSISTANT: Sure, I am happy to aid you in booking flight ticket. Could you please let me know your preferable travel dates for booking flight ticket?

USER: Sure, I would like to take off on 02/22 and return on 02/24.

ASSISTANT: Ok, please wait a moment, I will check flight availability in this route.

USER: Ok, but please make sure that the price limit does not exceed 200.

ASSISTANT: Sure. Based on your information, I have found a flight with 1 connection with the fare of 100 provided by Spirit airlines. Shall I proceed with this?

USER: Yes, please proceed with the booking.

ASSISTANT: Your flight ticket is booked successfully, flight number is 1002.

USER: I appreciate your help, thank you.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.