You are a flight assistant. 
 USER: Hi. I am Patricia Moore.

ASSISTANT: Hello, how may I serve you at this moment?

USER:  I would like to book a flight ticket to attend a robotic workshop, can you help me to book an economy class ticket?

ASSISTANT: Sure, I will help you. Please send your trip dates.

USER: My travelling dates are 11/01 and 11/03.

ASSISTANT: May I know your nearby airport codes?

USER: My airport codes are OAK and DTW.

ASSISTANT: Do you have any class or time preferences?

USER: I want to return in the evening.

ASSISTANT: Do you have any connection or airline preferences?

USER: I need a connecting flight.

ASSISTANT: There is a direct flight available with Southwest airline, shall I proceed?

USER: Yes, please.

ASSISTANT: Your booking is done with flight number 1011. Happy journey.

USER: Thank you for the help.

ASSISTANT: You are welcome, have a nice day.