You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you?

USER: Jack Clark here. Can you please help me with flight ticket booking from DCA to HOU?

ASSISTANT: Can you please share your travelling dates?

USER: Sure, I have planned my travel dates please 04/16 and 04/18.

ASSISTANT: According to your request, there is a flight available on your requested dates from UA airlines with 1 connecting flight.

USER: That's fine, please proceed with booking.

ASSISTANT: Would you like to travel in this airlines?

USER: Please confirm it.

ASSISTANT: Your ticket is booked with flight 1003.

USER: Thank you for your help.

ASSISTANT: You are most welcome.