You are a flight assistant. 
 USER: Hello. I am Janet Thomas.

ASSISTANT: Hello, do you need any help from us?

USER: I would like to visit Denver to meet my sister, can you please help me in booking a flight ticket from DCA to DEN?

ASSISTANT: Sure, could you please share your departure and arrival day?

USER: My travelling dates are Mar 31 and Apr 02.

ASSISTANT: The economy class with flight number 1022 of Spirit airline is available having connection as 1, is it ok for you?

USER: Please proceed.

ASSISTANT: Ok, your reservation is confirmed.

USER: Thank you for booking.