You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I be there for you?

USER: Need your assistance for booking a flight ticket to OAK with a connected flight.

ASSISTANT: Sure, when are you planning to make your trip?

USER: I have a plan to travel on Sept 23 and 25.

ASSISTANT: From which airport are you willing to leave?

USER: My nearest boarding airport is ORD.

ASSISTANT: How many connections do you need?

USER: I need a single connection to my journey.

ASSISTANT: Is there any other requirements?

USER: No.

ASSISTANT: May I know your name?

USER: My name is Richard King.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Delta airline with flight number 1021 is going on your way with 1 connection and fare 200. Is that fine?

USER: Ok, please proceed for booking.

ASSISTANT: Your booking has been done.

USER: Thanks for your service.

ASSISTANT: Thank you for choosing us.