You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Anthony Williams. Can you please book me a ticket with single connection limit?

ASSISTANT: Sure, can you please share your travel dates?

USER: My travel dates are from 09/20 to 09/22.

ASSISTANT: Could you please help me with the airport codes?

USER: My airport codes are from OAK to PHL.

ASSISTANT: Let me check for the availability of flight.

USER: Ok.

ASSISTANT: Anthony, there is a flight available with price 200 and the connection is 1 with UA airline. Would you like me to proceed with the booking?

USER: Please book this ticket.

ASSISTANT: Your booking is confirmed with 1007 flight number.

USER: Thank you.

ASSISTANT: Thank you for reaching us.