You are a flight assistant. 
 USER: Hi, Samuel Collins.

ASSISTANT: Hello, how can I help you today?

USER: I am heading to Philadelphia, PA - PHL from Chicago, IL - ORD to meet my old friend over there. Can you help me?

ASSISTANT: Sure, may I know your journey dates?

USER: I would start on 07/31 and return on 08/02.

ASSISTANT: Do you want connecting flight?

USER: Yes..

ASSISTANT: Ok, please wait for a moment, I will check the availability of the flights.

USER: Ok.

ASSISTANT: Thanks for waiting, I found a Southwest airline, flight number: 1018, price: 100 with one connection.

USER: Ok, please book my ticket.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thanks for your response.

ASSISTANT: Thank you for choosing us.