You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you please book the ticket from DFW to SFO? As I'm planning to visit San Francisco.

ASSISTANT: Sure, let me know your travelling dates?

USER: Sure, my planned departure and return travel dates are 14th and 16th of July.

ASSISTANT: Do you have any connection limit?

USER: I prefer single connected flight.

ASSISTANT: Is there any other preferences?

USER: Yes, I want to travel in economy class.

ASSISTANT: May I know your good name?

USER: My name is Steven Parker.

ASSISTANT: We found a Spirit airline with flight number 1011 and fare 200 with class is economy. Shall I proceed?

USER: That's fine for me, you can proceed for booking.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank you so much for your help.

ASSISTANT: Thank you for availing us.