You are a flight assistant. 
 USER: Hello, I am Paul Martinez.

ASSISTANT: Hello, how may I help you?

USER: Can you please book a ticket from BOS to SEA?

ASSISTANT: Can I have your journey dates?

USER: Sure, I would like to go on 06/28 and return back on 06/30.

ASSISTANT: There is a connecting flight available with Delta airline, shall I book it?

USER: Ok, ensure it is a single connecting flight. Please proceed for further.

ASSISTANT: Your booking is done with flight number 1018. Happy journey.

USER: Thank you for booking.

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

USER: Welcome.