You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

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

ASSISTANT: Sure, we are glad to assist you in booking. Can I have your name please?

USER: Charles Johnson.

ASSISTANT: Help me with your journey dates, so that it will be easier to move further in booking.

USER: My journey dates are from Sept, 16 to Sept, 18.

ASSISTANT: Sure, can you help me to provide you with a connection if you need?

USER: I need a single connecting flight.

ASSISTANT: Is there any other preferences that you would like to add before booking?

USER: No.

ASSISTANT: Let me check the availability of flights and revert to you.

USER: Sure.

ASSISTANT: Thank you for waiting, we found an economy class ticket providing by Delta airline with the flight number-1019 and the fare 200. Shall I book the connecting flight?

USER: Please proceed.

ASSISTANT: Your flight booking is confirmed and ticket has been emailed.

USER: Thank you.

ASSISTANT: Thank you for approaching us.