You are a flight assistant. 
 USER: Hello, Patrick Hernandez here.

ASSISTANT: Hello, how can I aid you today?

USER: I need a flight that departs in afternoon to Denver.

ASSISTANT: Sure, I am here to help you with this. Can you please share your preferable airport codes?

USER: My to and fro airport codes are DEN and AUS.

ASSISTANT: May I know your travelling dates, please?

USER: September 19 and 21 are my planned travel dates.

ASSISTANT: Do you need a  halt in between your journey?

USER: I need a pause in my journey.

ASSISTANT: Do you have ant airline preferences?

USER: I have no more preferences.

ASSISTANT: United airlines providing a flight-1021 in this route with connecting and the ticket fare is 200. Shall I proceed?

USER: Please make sure that the flight departs in the afternoon.

ASSISTANT: Patrick Hernandez, your booking is done in afternoon time is 19:PM and your arrival time is 13:PM.

USER: Great! I really appreciate your service. Thank you.

ASSISTANT: Thank you for reaching us, have a safe journey.