You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you for the day?

USER: Rachel Jones here. Can you please help me in booking a flight ticket from DCA to HOU?

ASSISTANT: Sure, can I know your journey dates?

USER: Sure, my travel dates are from Oct 28 to Oct 30.

ASSISTANT: Do you have any requirements?

USER: I need a connecting flight.

ASSISTANT: We found a direct flight in Frontier Airlines of flight number 1025 having an economy class ticket. Shall I proceed to book?

USER: Ok, please proceed.

ASSISTANT: Your booking has been confirmed successfully.

USER: Thank you for your service.

ASSISTANT: Thank you for approaching us.