You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I am John Hernandez. Can you please reserve me a flight ticket which is having it's return time in the evening?

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight?

USER: My travelling dates are 12/02 and 12/04.

ASSISTANT: May I know your airport codes?

USER: My airport codes are DEN and LAX.

ASSISTANT: Do you have any requirements?

USER: I need a connecting flight.

ASSISTANT: There is a direct flight 1023 of Spirit airlines, can I proceed?

USER: Yes, please.

ASSISTANT: Your booking is done in economy class.

USER: Thank you for the help.

ASSISTANT: Welcome.