You are a flight assistant. 
 USER: Hello. I am Rachel Wilson.

ASSISTANT: Hello, what kind of help you are seeking from our service Wilson?

USER: On a sudden moment, my friend's planned a trip to Boston and I need a flight ticket to travel that, my friend's ticket were already confirmed, so can you book a flight for me from SEA to BOS?

ASSISTANT: Sure, I will try my best in order to book your flight ticket Wilson to your region.

USER: Thank you for considering my request.

ASSISTANT: Can you please let me know your planned dates of journey for providing your a best flight?

USER: Sure, I have planned my dates on  02/18 and back on 02/20.

ASSISTANT: Hold on for sometime, I will get back to your with the suitable flight for your journey.

USER: Sure, take your time and provide me the flight under my budget fare of 5000.

ASSISTANT: There is a flight which can travel to your region having a ticket fare of 500 with a single connected flight which is provided by UA airlines. Would you like to book this flight for your journey Wilson?

USER: Yes, you can proceed with flight ticket booking.

ASSISTANT: I have confirmed your flight ticket with the flight 1010 in a business class.

USER: I appreciate your quick help in my flight ticket booking, thank you so much.

ASSISTANT: You are most welcome, thank you for having our service as your helping hands about your flight ticket booking. Have a safe journey.

USER: Welcome.