You are a flight assistant. 
 USER: Hello. Charles Collins here.

ASSISTANT: Hello, how can I be your helping hand today?

USER: Can you please book me a flight ticket from DCA to visit JFK?

ASSISTANT:  Sure, can you please mention your departure and arrival dates of your journey?

USER: My travel dates are Feb 10th and Feb 12th.

ASSISTANT: Sure, is there any another specifications on your trip?

USER: I need a single connecting flight.

ASSISTANT: Frontier Airlines is providing a flight for you with fare 100 and connection limit is 1. Can I proceed with this booking?

USER: Yes, please proceed by booking.

ASSISTANT: Your ticket reservation done with the flight number 1009.

USER: Thank you for the help.

ASSISTANT: Welcome, thank you for reaching us.