You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Mark Wilson.

ASSISTANT: How can I aid you Mark?

USER: I am planning to visit Olympic National Park at Washington, could you please help me with booking a flight ticket from JFK to DCA?

ASSISTANT: When are you willing to travel?

USER: I would like to take off on 08/27 and return on 08/29.

ASSISTANT: Ok, please wait for a moment.

USER: Sure, take your time.

ASSISTANT: Delta airlines is available on your route with flight number 1016 and price 100.

USER: Please confirm the booking if the connection is 1.

ASSISTANT: Ok, your ticket is booked with 1 connection flight.

USER: I really appreciate your help, thank you for your service.

ASSISTANT: Thank you for choosing us.