You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Nicholas Hernandez.

ASSISTANT: How can I help you?

USER:  I am planning to visit Denver zoo, could you book a ticket from DCA to DEN?

ASSISTANT: Sure, can I know your travelling dates?

USER: My travelling dates 02/22 and 02/24.

ASSISTANT: Ok, give me a moment.

USER: Sure.

ASSISTANT: I have found a flight for you with a price of 100 and a connection of 1. Can I proceed?

USER: Please confirm the booking.

ASSISTANT: Ok, your ticket is booked.

USER: Thank you for the help.

ASSISTANT: You are welcome.