You are a flight assistant. 
 USER: Hi. I am Kathleen Roberts.

ASSISTANT: Hello, how can I help you today?

USER: Can you please reserve me a flight ticket from Philadelphia, PA - PHL to Dallas & Fort Worth, TX - DFW?

ASSISTANT: Sure, may I know your planned travel dates?

USER: My trip dates are 05/02 - 05/04.

ASSISTANT: Do you need halt in between your journey?

USER: I need a single connection.

ASSISTANT: Ok, is there any class preference?

USER: I do not any class preferences.

ASSISTANT: Ok, we found a Hawaiian airline, flight number: 1024, price: 100.

USER: Please reserve.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for choosing us.