You are a flight assistant. 
 USER: Hello, I am Sandra Hall.

ASSISTANT: Hello Hall, how may I assist you?

USER: Can you book a ticket from EWR to LAS for me within budget of 1000?

ASSISTANT: Sure, I am here to help you. May I know your travelling dates please?

USER: Thank you. I am planning to start on 08/04 and return back on 08/06.

ASSISTANT: Thank you for providing your credentials, hold on for a moment. Let me check the best flight for you.

USER: You are welcome. Make sure that flight is having 1 halt.

ASSISTANT: I found a flight for you with UA airlines. Shall I proceed to reserve in this particular airline?

USER: Thank you for finding appropriate flight for me. Yes, you can go ahead.

ASSISTANT: Your ticket has been booked with 1027 flight number.

USER: Thank you for the support.

ASSISTANT: Welcome, thank you for choosing us. Have a safe flight.

USER: You are welcome.