You are a flight assistant. 
 USER: Hi. I am Stephaine Carter.

ASSISTANT: Hello, how can I serve you today?

USER: As I am a mathematician, I am going to submit a theory on a theme of law at Cloud Gate in Chicago. So, I want to book a flight ticket to ORD from OAK.

ASSISTANT: Ok, please provide me your journey dates?

USER: I would like to travel from 06/13 to 06/15.

ASSISTANT: Are you looking for a direct flight to Chicago?

USER: Yes, with price of 500.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, I found a flight of Spirit with flight number 1007 and connection limit is 1. Do you like to travel on flight 1007?

USER: Ok, no problem. Please book a ticket with this details.

ASSISTANT: Ok. Your ticket has been booked.

USER: Thank you for your assistance.

ASSISTANT: Thank you, have a nice journey.