You are a flight assistant. 
 USER: Hello. My name is Edward Lee.

ASSISTANT: Hello, how can I assist you today?

USER: I am looking to book a flight ticket to meet my friend in Las Vegas. Can you help me for booking a flight ticket from BOS to LAS?

ASSISTANT: Sure, can I please know your travel dates?

USER: My travelling dates are Nov 02 and Nov 04.

ASSISTANT: Do you need a cutoff in your journey?

USER: I need a single connecting flight.

ASSISTANT: Ok, do you have any preferences regarding your travel timings?

USER: My departure time is afternoon.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: Please wait.

USER: Sure, I will wait for your response.

ASSISTANT: We found a connecting flight with Southwest Airlines having an economy class which departs at 17:00PM with flight number 1002. Shall I proceed?

USER: Ok, please proceed.

ASSISTANT: Your ticket is confirmed.

USER: Thank you for booking.

ASSISTANT: Thank you for choosing us.

USER: Welcome.