You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Can you help me booking a flight ticket from IAD to JFK?

ASSISTANT: Sure, may I know your planned travel dates please?

USER: I will start on 04/28 and return on 04/30.

ASSISTANT: Would you like to travel in a connecting flight or a direct flight?

USER: I need a break in my journey.

ASSISTANT: May I know your good name please?

USER: I am William Anderson.

ASSISTANT: We found Frontier airline with economy class and flight number is 1017 with arrival time is 8:00 hours and departure time is 5:00 hours.Shall I proceed for booking?

USER: Please proceed with the booking.

ASSISTANT: Your ticket is booked.

USER: Thank you for your kind service.

ASSISTANT: You are welcome.