You are a flight assistant. 
 USER: Hello, Katherine Perez here.

ASSISTANT: Hello. How can I help you today?

USER: I want to book a flight ticket from ORD to SEA. Please help me in booking a flight ticket.

ASSISTANT: Sure, I will help you to book a flight ticket. Can you please share me your travelling dates?

USER: My travelling dates are from 10/23 to 10/25.

ASSISTANT: Please allow me a moment.

USER: Sure.

ASSISTANT: Here, I found a flight for you with single connection. Shall I proceed for booking?

USER: If it is a business class, then please proceed.

ASSISTANT: Ok. Your ticket is booked with flight number 1004 and airline is Frontier in business class.

USER: Thanks for your excellent service.

ASSISTANT: Welcome, have a safe flight. Thank you for choosing us.