You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I best help you today?

USER: I am planning to visit Las Vegas to celebrate my birthday there, can you please book me a ticket from DCA to LAS?

ASSISTANT: Sure, I am happy to help you. May I know your journey dates please?

USER: I am planning to depart on July 30 and would like to return on Aug 01.

ASSISTANT: Ok, please share your connection limit.

USER: I prefer connecting flight on this route.

ASSISTANT: Can I have your name please?

USER: My name is Andrew Hernandez.

ASSISTANT: Do you have any other requirements that you are looking for?

USER: I prefer economy class ticket.

ASSISTANT: Ok, please wait for a couple of minutes.

USER: Sure.

ASSISTANT: Thanks for your patience, we found a connecting flight in economy class in 1010 Hawaiian airline. Shall I proceed?

USER: Please book my ticket in this flight.

ASSISTANT: Ok, your ticket has been confirmed.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you for choosing us.