You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you for today?

USER: I am Donna Evans, I need to reserve a flight for my journey to Las Vegas city in order to attend a small event over there about my cousin. Can you please assist me to book a flight ticket from Boston?

ASSISTANT: I am glad to help you about your flight ticket booking.

USER: Thank you for taking my request into consideration.

ASSISTANT: On which dates you have schedule your journey can you provide please?

USER: Sure, I have scheduled to start my journey on 08/07 and want to catch a return flight on 08/09.

ASSISTANT: What are your respective location airport codes you want to board and take off your flight can you please provide?

USER: Yes, my boarding airport code is BOS and destination airport code is LAS.

ASSISTANT: Give me some time to find a flight which can travel on your preferable route.

USER: Ok, have your time and try to check a flight with 1 connected flight for my journey.

ASSISTANT: Sure, I will try my best to find a flight for your journey accordingly. Sorry Lewis, I am not able to find a flights which can travel on your scheduled dates of your journey.

USER: Not a problem, I will go with road trip to travel my desired destination. Anyway thank you for the information.

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