You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you today?

USER: I want to meet my school principal on his birthday, can you please help me to book the flight ticket from OAK to ORD?

ASSISTANT: Sure, I am happy to help you. Can you please provide your preferable dates of travelling?

USER: Sure, I will depart on 09/27 and return on 09/29.

ASSISTANT: Ok, may I know your name to book the flight ticket?

USER: My name is Karen Baker.

ASSISTANT: Please wait a moment to check the flights availability.

USER: Sure.

ASSISTANT: Based on your information, I have found flight with 1 connection with the fare of 100. Is it ok for you?

USER: Yes, you can book the ticket.

ASSISTANT: Sure, your ticket has been confirmed in flight number 1015.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us, have a great journey.