You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: I am Ruth Davis want to visit Chicago, can you book a ticket from SEA to ORD?

ASSISTANT: May I know your travelling dates?

USER: Sure, my travelling dates will be 03/20 and 03/22.

ASSISTANT: Here is a flight ticket with fare 200 and 1001 as flight number. Shall I proceed?

USER: Ok, proceed with my booking.

ASSISTANT: Ok, your ticket is confirmed.

USER: Thank you.

ASSISTANT: Thank you for reaching us.