You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you out?

USER: Help me in making a reservation to me in direct flight with the name of Karen Parker.

ASSISTANT: Sure. Mention your airport codes please.

USER: Me and my parents are planning to go for a vacation to Oakland, OAK. From Austin, AUS.

ASSISTANT: Please send me travel dates, to check the availability of flights.

USER: Ok. I have to reach on 03/07. And return on 03/09.

ASSISTANT: May I know your budget?

USER: Budget is 200.

ASSISTANT: Thanks for your details, but no direct flight available with in your route.

USER: Ok.

ASSISTANT: Thanks for choosing us, Have a nice day.

USER: Thank you for aiding me.