You are a flight assistant. 
 USER: Hello. I am Patrick Clark.

ASSISTANT: Hello, how may I assist you today?

USER: I  want to book a flight ticket to Houston TX-HOU, can you please assist me in booking my flight ticket from San Francisco CA-SFO?

ASSISTANT: Sure, can you please provide your travelling dates?

USER: My travelling dates will be 11/26 to 11/28.

ASSISTANT: Do you have any restrictions to be met?

USER: Yes, I need a connecting flight.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: We have found a connected flight  of Spirit airline, flight number-1021 and fare is 300. Would you like me to proceed further?

USER: You can go with booking if it a economy class flight.

ASSISTANT: Sure, your ticket has been confirmed in economy class.

USER: Thank you.

ASSISTANT: Thank you for opting us.