You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I am planning to meet my friend at LGA. Can you please help me out to book a ticket from AUS?

ASSISTANT: Sure, can you share your trip dates?

USER: I would like to travel on Jan 19 and return back on Jan 21.

ASSISTANT: Is there any connection limit?

USER: I am looking for a direct flight.

ASSISTANT: Do you prefer either economy or business class?

USER: I am ok with any class.

ASSISTANT: Are there any other specifications?

USER: No.

ASSISTANT: Please share your good name with us.

USER: My name is Emily Parker.

ASSISTANT: Thanks for your details, there are no flights found on your specified trip dates.

USER: That's fine, thank you for your service.

ASSISTANT: Thank you.