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

ASSISTANT: Hello, how can I help you?

USER: I want to attend an interview at Las Vegas, NV - LAS. Can you help me to book a flight ticket?

ASSISTANT: Sure, can provide me your travelling dates?

USER: I want to travel on 07/25 and return at 07/27.

ASSISTANT: OK, do you need any specifications?

USER: My Origin is CA - LAX. I need a connected flight with price not more than 200.

ASSISTANT: OK, I found a flight in Southwest airline with single connection and price of 100. Flight number is 1025. Shall I proceed with booking?

USER: Sure, proceed please.

ASSISTANT: Your ticket  has been booked.

USER: Thanks for your help and support.

ASSISTANT: Thank you, for reaching us.