You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Robert Thomas.

ASSISTANT: How can I  help you?

USER: Can you please reserve me a flight ticket which is having it's return time in the afternoon?

ASSISTANT: Sure, may I know your airport codes please?

USER: My airport codes are AUS - DEN.

ASSISTANT: Your travelling dates please?

USER: My trip dates are 04/28 - 04/30.

ASSISTANT: Do you need connection flight?

USER: I need a single connection.

ASSISTANT: Here is a connecting flight with flight number 1015 and fare is 200, providing ticket in economy class. Shall I proceed with booking?

USER: Please reserve.

ASSISTANT: Your booking is done in Hawaiian airlines.

USER: Thank you.

ASSISTANT: Thank you for choosing us.