You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Patrick Roberts, I am planning for an outing at Minneapolis. Can you help me to book a ticket?

ASSISTANT: Ok, may I know your travel dates please?

USER: I am planning for the trip from 07/06 to 07/08.

ASSISTANT: Ok, can you provide your dates of journey?

USER: Search for the flights between ORD to MSP.

ASSISTANT: Ok, may I know your airport codes please?

USER: Ok.

ASSISTANT: I found a flight for you with Frontier airline and it costs you 200. Shall I proceed?

USER: Please proceed my booking.

ASSISTANT: Your ticket has been booked with 1005 flight number.

USER: Thank you for helping me.

ASSISTANT: Thank you for choosing us, have a safe flight.

USER: You are welcome.