You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Sandra Thomas, help me to book a flight on 10/02 and return ticket on 10/04.

ASSISTANT: Sure, may I know your journey codes?

USER: I will fly from FL-MCO to IL-ORD. I need a connecting flight.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: We found a flight with number 1023 and Frontier as airline. The cost of the ticket is 300.

USER: Please proceed with booking.

ASSISTANT: Your booking is done.

USER: Thank you for helping me.

ASSISTANT: Thank you.