You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I want to book a flight from SFO to attend a meeting at DEN. Can you find me a flight?

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

USER: I will fly on June 17 and return on June 19.

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

USER: Donald Green.

ASSISTANT: Let me know your connection limit?

USER: I prefer a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: We found 1001 Southwest airlines with single connection with economy class. Shall I proceed with the booking?

USER: Please proceed with booking.

ASSISTANT: Your ticket has been reserved with price 100.

USER: Thank you for helping me.

ASSISTANT: Thank you for choosing us.