You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Benjamin Clark.

ASSISTANT: How can I assist you?

USER: I need to travel San Francisco, can you please book flight ticket?

ASSISTANT: Ok, please may I know the dates of your trip as I have to know to check the availability?

USER: Sure, here are my travelling dates 06/23 and 06/25.

ASSISTANT: Ok, please provide me the details of your origin and destination airport codes.

USER: My airport codes are DTW and SFO.

ASSISTANT: There is a flight available with 1 connection limit and the airfare is 100.

USER: Please proceed with the booking.

ASSISTANT: Ok, the flight ticket is booked. Thank you for choosing our agency, the flight number is 1025.

USER: Thank you for booking flight ticket.