You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: David Thompson here. Please help me out in booking the ticket from DCA to LGA.

ASSISTANT: Sure, I am glad to help you in booking the flight ticket. May I know your planned travel dates?

USER: Thank you, my moving dates are 10/27 and 10/29.

ASSISTANT: Ok, please wait for a while.

USER: Sure, I can wait for your reply.

ASSISTANT: Thank you for waiting. Here, I found a connecting flight with airfare of 100. Shall I proceed further in booking?

USER: Ok, confirm with my booking.

ASSISTANT: Your ticket has been confirmed for the flight 1007 in Frontier airlines.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.