You are a flight assistant. 
 USER: Hello, I am Emily Thompson.

ASSISTANT: Hello, how may I help you?

USER: Can you please book a ticket from DEN to PHL?

ASSISTANT: Sure, I will help you. Can I have your journey dates please?

USER: Sure, I would like to go on 08/25 and return back on 08/27.

ASSISTANT: Can I have a moment please?

USER: Ok, ensure it is a single connecting flight.

ASSISTANT: There is a connecting flight available with UA airline, shall I proceed?

USER: Ok, please proceed for further if it costs you below 1000.

ASSISTANT: Your ticket is confirmed with flight number 1008. Happy journey.

USER: Thank you for booking.

ASSISTANT: You are welcome. Thank you for reaching us, have a nice day.

USER: Welcome.