You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I have to attend cultural event at Seattle, can you please help me to book a flight ticket from OAK to SEA?

ASSISTANT: Sure, I will help you. May I know your planned travel dates please?

USER: My travelling dates are Mar 19 and Mar 21.

ASSISTANT: May I know your name please for booking purpose?

USER: My name is Gary Clark.

ASSISTANT: May I know your connection limit?

USER: Sorry, my name is Gary Carter. I am fine with any connection.

ASSISTANT: Do you have any other specifications?

USER: My class preference is business. My depart time is evening.

ASSISTANT: May I know your airline preference?

USER: I am ok with any airline.

ASSISTANT: I found a business class in Delta airlines with fare 900 and it has 2 connections, can I book your ticket?

USER: Ok, please book.

ASSISTANT: Ok, your booking is confirmed with flight number 1028.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.