You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Edward Young here.

ASSISTANT: How may I assist you today?

USER: I would like to visit New York to meet my old friend there, so can you please help me out with booking of a flight ticket?

ASSISTANT: Sure, when would you like to fly?

USER: I would like to fly on 08/13 and please book a return ticket on 08/15.

ASSISTANT: Ok, please provide your airport codes that you want to travel.

USER: Sure, I want to travel from AUS to JFK.

ASSISTANT: Please give me a moment.

USER: Sure, take your time to check. Please ensure that flight should be with single connection.

ASSISTANT: Thank you for waiting.

USER: No problem.

ASSISTANT: There is no flights found as per your requested details.

USER: Oh! so sad to hear. Anyway, thank you for the information.

ASSISTANT: Welcome, have a great day.