You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Linda Davis here. I want to attend my client's wedding at Denver, could you book my ticket from Orlando?

ASSISTANT: Sure, when would you like to depart and return?

USER: My itinerary dates are May 26 and May 28.

ASSISTANT: May I know your airport codes?

USER: My genesis and terminus airport codes are MCO and DEN.

ASSISTANT: Do you need halt in between your journey?

USER: I need 1 halt.

ASSISTANT: Ok, we found an UA airline, flight number: 1020, price: 200 with one connection.

USER: Please book my ticket.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.