You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am John Davis.

ASSISTANT: How can I help you today?

USER: I am planning to visit Houston, can you please book me a ticket from DCA to IAH?

ASSISTANT: Sure, I am here to help to help you in booking. Can you please share your travel dates?

USER: My preferable journey dates are from Feb 03 to Feb 05.

ASSISTANT: Please hold on for a while.

USER: Sure, I will wait for your information.

ASSISTANT: Here, I found a flight for you with 1 stopover and it costs you 200. Can I proceed?

USER: That's ok for me. Please book my ticket in this flight.

ASSISTANT: Your booking is done with flight 1012 in AA airlines.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you for reaching us, have a safe flight.