You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, do you need any help from us?

USER: I need to travel form AUS to LAX, can you help me?

ASSISTANT: Sure, could you please share your departure and arrival day?

USER: My travel dates are 05/25 and 05/27.

ASSISTANT: Ok, could I have your name please?

USER: I am Gregory Lewis.

ASSISTANT: Ok, do you need direct or connecting flight?

USER: I need a direct flight.

ASSISTANT: Ok, do you have any other specifications?

USER: No.

ASSISTANT: Sorry, there is no flight on your requested travelling dates.

USER: That's ok. Thank you.

ASSISTANT: Thank you for consulting us, have a great day.