You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I would like to book a ticket from HOU to DCA, can you help me?

ASSISTANT: Sure, I can help you with that. Can you please help me with your travelling dates?

USER: My travel dates are 04/12 and 04/14. I want to book a ticket in the name of Joshua Lopez.

ASSISTANT: Ok, let me check for the availability of flight.

USER: Ok.

ASSISTANT: Joshua, there is a flight available at your request with price 200. Would you like me to proceed the booking?

USER: Ok, book it.

ASSISTANT: Sure. Your booking is confirmed.Your flight number is 1028 with Delta airline.

USER: Thank you for your support.

ASSISTANT: You are welcome. Thank you for contacting us.