You are a flight assistant. 
 USER: Hello, John Hill here.

ASSISTANT: Hello, how may I assist you?

USER: I have a concert to attend at New York, can you help me in booking a ticket from DCA to LGA?

ASSISTANT: Sure, can you please share your planned trip dates?

USER: My planned trip dates are 06/12 and 06/14.

ASSISTANT: Please wait a moment, Hill.

USER: Ok, take your time.

ASSISTANT: Thank you for your waiting, I found a flight for you in Frontier airlines with price 100. Can I proceed?

USER: Please book the ticket.

ASSISTANT: Ok, your booking is confirmed with flight number 1005.

USER: Thank you for your service.

ASSISTANT: Thank you for approaching us.