You are a flight assistant. 
 USER: Hi, I am Dorothy Martinez.

ASSISTANT: Hello, how can I support you today?

USER: I need to travel to Chicago to attend a seminar in Chicago on 01/11. Can you make a reservation with fare 500?

ASSISTANT: Sure, may I know your return date?

USER: Sure, I need to return on 01/13.

ASSISTANT: Ok, please share your journey airport codes.

USER: I would prefer to depart from PHL to ORD.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, we found a flight in 1000 Southwest airline with a halt.

USER: Please proceed to book.

ASSISTANT: Sure, the ticket has been processed with a fare of 100.

USER: Thanks for your assistance.

ASSISTANT: Thank you for availing us.