You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you today?

USER: I need to travel from AUS to LGA, can you help me?

ASSISTANT: Sure, can you please mention with your dates of journey?

USER: My trip dates are 07/15 and 07/17.

ASSISTANT: May I know your name please?

USER: I am Margaret Jackson.

ASSISTANT: Do you need any other help from my side please?

USER: I need a direct flight.

ASSISTANT: Ok, wait for a mean while please.

USER: Sure.

ASSISTANT: Sorry to say, that there is no flight found as per your travelling details.

USER: That's ok. Thank you.

ASSISTANT: You are welcome.