You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: Myself Sharon Moore I want to travel from LAS to ORD, please book a flight ticket for me.

ASSISTANT: Sure, may I know your trip dates?

USER: My travelling dates are from 04/21 and I want to return on 04/23.

ASSISTANT: Sure, just wait for a while. Spirit airline is providing you a flight but the fare is 300. Do you like to proceed?

USER: Sure, please proceed it.

ASSISTANT: Ok, your ticket has been booked with flight number 1004.

USER: Thank you so much.

ASSISTANT: You are welcome.