You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you?

USER: I need to book a flight ticket from SFO to LAS, can you help me in booking a flight ticket?

ASSISTANT: May I know your travel dates?

USER: Sure, my journey dates are Apr 16 and Apr 18.

ASSISTANT: Do you have any connecting flight preferences?

USER: I prefer maximum one connection.

ASSISTANT: Is there any other concern?

USER: I would prefer return time at evening.

ASSISTANT: May I know your name please?

USER: Sure, Jacob Robinson here.

ASSISTANT: Delta Airlines is providing the connecting flight and the fare of 100. Shall I proceed?

USER: Yes, you can.

ASSISTANT: Your reservation is confirmed for the flight 1021.

USER: Thank you.

ASSISTANT: Thank you for choosing us.