You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: I would like to travel from SFO to DFW for my office work, please help me to book my flight ticket.

ASSISTANT: Sure, please share your planned travel dates.

USER: Sure, I will depart on Jan 28th and I have to return back on Jan 30th.

ASSISTANT: Which airline do you prefer to tarvel?

USER: I prefer for a normal-cost airlines.

ASSISTANT: May I know your name please?

USER: My name is Joseph Moore.

ASSISTANT: Do you have any other preference?

USER: I need a flight with single connection.

ASSISTANT: We have a flight from Hawaiian airlines, number 1017 and it is costing 100, Shall I proceed?

USER: Yes, please book the ticket for me.

ASSISTANT: Your ticket is confirmed in economy class.

USER: Thank you so much.

ASSISTANT: Thank you.