You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I want to fly from DEN to PHL. Can you check the flight availability on that route?

ASSISTANT: Sure, I will help you. May I know your name?

USER: Sure, Brenda Hill here.

ASSISTANT: Thank you. Please let me know your travel dates.

USER: My planned travel dates are 06/15 and 06/17.

ASSISTANT: Noted. Are you comfortable with economy class flight or business class flight?

USER: No more specifications please. Proceed with direct booking.

ASSISTANT: Sure. Please wait for a while.

USER: Sure.

ASSISTANT: Direct flight is available with Frontier Airlines and the ticket fare is 200 only in economy class. Flight departs at 15:00 hours and arrives at 16:00 hours. Shall I book the ticket for you?

USER: Yes, you can proceed with that booking.

ASSISTANT: Your ticket is booked with the flight-1015.

USER: Thank you for the booking.

ASSISTANT: You are most welcome.