You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you today?

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

ASSISTANT: Sure, On which dates would you like me to book a flight ticket for you?

USER: My travel dates are from Apr, 27 to Apr, 29.

ASSISTANT: On what name, do I need to reserve your ticket?

USER: Sarah Lewis.

ASSISTANT: Let me know your connection limit?

USER: I need a single connecting flight.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Sure.

ASSISTANT: We found 1002 Delta airlines with single connection with economy class.

USER: Please proceed.

ASSISTANT: Your ticket has been reserved with fare 100.

USER: Thank you for booking.

ASSISTANT: Thank you for choosing us.