You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How may I serve you?

USER: I am Donald Harris, want to book a flight ticket from San Francisco, CA-SFO to Philadelphia, PA-PHL.

ASSISTANT: Sure, please provide your journey dates.

USER: My travel dates are from 08/15 to 08/17.

ASSISTANT: OK, please wait for a minute.

USER: OK.

ASSISTANT: There is a flight found with AA airline and there is no connection limit. The flight number is 1013. Also the price of the ticket is 200. Can I proceed with booking?

USER: Thanks for the information, you can proceed with booking.

ASSISTANT: OK, sure your booking is confirmed. Thank you for choosing our service.

USER: Thank you.