You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I have decided to book a flight on Feb 29th, as I have to attend for a Birthday party in Chicago, will you please avail a ticket for me?

ASSISTANT: Sure, when do you want to return from Chicago?

USER: Thank you for considering my request and I have planned to return on Mar 2nd.

ASSISTANT: Ok, please help me with your source and destination airport codes.

USER: My airport codes are MSP - ORD.

ASSISTANT: Ok, Do you prefer any airlines to travel?

USER: I am okay with any airline.

ASSISTANT: Ok, Do you have any class preference?

USER: Yes, I prefer an economy class to travel.

ASSISTANT: Ok, Do you have any other preferences?

USER: I wish to travel in a connected flight.

ASSISTANT: Thank you for providing details, we found a connecting flight in 1007 Spirit Airlines with a fare of 100. Can I proceed for booking?

USER: It's perfect, you can proceed.

ASSISTANT: Ok, May I know your name?

USER: Sure, my name is Patricia Carter.

ASSISTANT: Your ticket has been booked in economy class.

USER: Thank you.

ASSISTANT: Thank you for opting us.