You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, How can I assist you?

USER: I am Joshua Phillips. I need a flight ticket to New York, EWR to attend flower festival to see and buy new species of flowers.

ASSISTANT: Ok. May I know your travelling dates?

USER: 09/20- 09/22 are my dates of travel.

ASSISTANT: Let me know your price limit?

USER: Budget for my ticket is 200.

ASSISTANT: Can you share me your source code?

USER: My nearest airport to board is Austin. So, my origin is AUS.

ASSISTANT: Please wait a while.

USER: Sure.

ASSISTANT: Thanks for waiting, There is no flights available with your details.

USER: Ok, I will choose other airline.

ASSISTANT: Thanks for choosing us.

USER: Thank you for kind response.