You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you today?

USER: I would like to book a ticket from DFW to SFO, can you please help me out?

ASSISTANT: Sure, on which dates are you planning your trip?

USER: I am travelling on these dates Jan 11th and 13th.

ASSISTANT: Is there any airline preference?

USER: I don't have any other preferences except single connected flight.

ASSISTANT: Ok, can you please share your name to proceed further?

USER: Christopher Williams here.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Spirit Airlines has a connecting flight with number 1017 for fare 100, shall I proceed?

USER: Ok, you can proceed.

ASSISTANT: Your ticket is reserved in economy class.

USER: Thank you for your services.

ASSISTANT: Thank you for opting us and have a safe flight.