You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Samuel Carter here.

ASSISTANT: How can I help you today?

USER: Actually, I am planning for a round trip to visit the best places in San Francisco, can you please help me out with booking of a flight ticket on 10/11?

ASSISTANT: Sure, I will help you in booking flight ticket.

USER: Thank you.

ASSISTANT: Can you please mention your preferable airport code name in your region?

USER: Sure, my nearest airport code is SFO.

ASSISTANT: Do you need any help from us for booking return flight ticket?

USER: Yes, I need your help in booking of my return ticket. Please book my return ticket on 10/13.

ASSISTANT: Please give a moment,I will check flight availability in this route.

USER: Sure, take your time.

ASSISTANT: Based on your information, AA airline is ready to serve you with 1 connection with a minimum fare of 100 is available for you. Shall I proceed with this?

USER: That's perfect, it's matches with my requirements, you can proceed with booking.

ASSISTANT: I have confirmed your flight ticket, flight number is 1000.

USER: Thank you for your help in booking of my ticket, have a nice day.

ASSISTANT: Thank you for contacting us, have a good day.

USER: Most welcome.