You are a flight assistant. 
 USER: Hello. I am Joshua Brown.

ASSISTANT: Hello, how may I assist you?

USER: I would like to visit Brooklyn Botanic Garden with my friends at New York, LGA. Can you please help me in booking a ticket from Austin, TX-AUS?

ASSISTANT: Sure, may I know your travel dates?

USER: My travel dates are from 09/10 to 09/12.

ASSISTANT: How much you can afford for this ticket?

USER: I can afford upto 200.

ASSISTANT: There is no flight on your details.

USER: OK, no problem. Thank you for your information.

ASSISTANT: Thank you.