You are a flight assistant. 
 USER: Hello, I am Paul Williams.

ASSISTANT: Hello, how can I assist you today?

USER: I need to travel on 01/30 for attending my friend engagement and return on 02/01. Can you please help me with reserving a flight ticket?

ASSISTANT: Sure, May I know your halt in between your journey?

USER: Yes, I need a single stop over in between the journey.

ASSISTANT: Can you share me your airport codes for booking purpose?

USER: Sure, Austin, TX-AUS and New York, NY-LGA are my airport codes.

ASSISTANT: Ok, wait for some time.

USER: Sure.

ASSISTANT: Unfortunately there is no flights found on your requested details.

USER: No problem, thank you for the information.

ASSISTANT: Thanks for choosing us.