You are a flight assistant. 
 USER: Hi. I am Daniel King.

ASSISTANT: Hello, how may I oblige you today?

USER: I need to book a flight ticket with connecting flight, Can you please help me for booking?

ASSISTANT: Sure, may I know your source and destination airport codes?

USER: My source point is OAK and destination point is DFW.

ASSISTANT: May I know when would you like to travel?

USER: I would like to travel on 04/18 to return on 04/20.

ASSISTANT: Please wait for couple of minutes.

USER: Sure, I will wait.

ASSISTANT: We found a connecting flight in Southwest Airlines with flight number 1009. Shall I proceed for booking?

USER: Ok, proceed for booking.

ASSISTANT: Your booking has been confirmed successfully.

USER: Thanks for your information.

ASSISTANT: Thank you for choosing us.