You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: Can you please help me in booking my flight ticket from DFW to SFO?

ASSISTANT: Sure, let me know your travel dates?

USER: My travelling dates are Mar 03 and 05.

ASSISTANT: Do you prefer direct flight or connecting flight?

USER: I need connecting flight.

ASSISTANT: Is there any other preferences?

USER: No.

ASSISTANT: May I know your good name?

USER: I am Helen Hernandez.

ASSISTANT: We found a Spirit airline with flight number 1020 and fare 100 with class is economy. Shall I proceed with booking?

USER: Please proceed.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for reaching us.