You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I help you?

USER: I am Gary Parker. I want to book a flight ticket to Chicago to attend international conference. Can you aid me to book a ticket?

ASSISTANT: Sure, Can you share me your travelling dates for booking purpose?

USER: Depart on 10/20 and return on 10/22.

ASSISTANT: May I know your airport codes?

USER: Source is from MSP and destination to ORD.

ASSISTANT: Do you need any halts in between your journey?

USER: Yes, I need halt.

ASSISTANT: Ok, wait for some time. We found UA airline with connecting flight and number 1022 fare of 100. Shall I proceed for booking?

USER: Proceed.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thanks for choosing us.