You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am planning to attend music concert at ORD, can you please help me with booking a flight ticket from OAK?

ASSISTANT: Sure, can you share your trip dates?

USER: I would like to take off on Dec 17 and return on Dec 19.

ASSISTANT: May I know your name?

USER: My name is Dorothy Martinez.

ASSISTANT: Do you have any preferences?

USER: I am looking for a connecting flight.

ASSISTANT: There is a connecting flight with number 1007 in airline Southwest, the fare is 200 in economy class. Can I book it?

USER: Yes, please proceed with the booking.

ASSISTANT: Your ticket is reserved.

USER: I appreciate your help, thank you.

ASSISTANT: Thank you for choosing us.

USER: You are welcome.