You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I serve you today?

USER: Can you help me to book a flight ticket from DEN to SFO?

ASSISTANT: Sure, I will help you in booking.

USER: Thank you.

ASSISTANT: May I know when you are planning to travel?

USER: I want to take off on 03 Mar and return on 05 Mar.

ASSISTANT: Do you have any other specifications?

USER: I prefer to depart in the afternoon with a connecting flight.

ASSISTANT: Can I know your name please?

USER: I am David Martinez.

ASSISTANT: There is an airline called Frontier of flight 1011 in an economy class with depart time 13:00 PM.

USER: Please proceed to booking.

ASSISTANT: Your ticket has been booked on name of David Martinez.

USER: Thanks for helping me.

ASSISTANT: Thank you for choosing us.