You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Please help me to book a flight ticket from BOS to LAS.

ASSISTANT: May I know your travelling dates?

USER: My travelling dates are from May, 06 to May, 08.

ASSISTANT: Can you please mention your connection limit?

USER: I need a single connecting flight.

ASSISTANT: May I know your class preference?

USER: I prefer an economy class.

ASSISTANT: Can I know your name?

USER: My name is William Martin.

ASSISTANT: Here is a connecting flight with fare 100 and 1020 as flight number. Shall I proceed with booking?

USER: Please proceed.

ASSISTANT: Ok, your ticket is confirmed.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us.