You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I guide you for today?

USER: I am Janet Martinez want to shoot my film at Oakland, can you book a ticket with price under 500?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: Sure, my travelling dates will be 09/25 and 09/27.

ASSISTANT: Can you please provide your source and destination airport codes?

USER: As it is a round trip, my source and destination is OAK.

ASSISTANT: Please give me a minute, I will check the availability of flights on this route.

USER: Ok.

ASSISTANT: Here is a flight with ticket fare 100 in Southwest airlines with a stopover. Is it ok for you?

USER: Ok, proceed with my booking.

ASSISTANT: Your booking is confirmed with flight number 1018.

USER: Thank you.

ASSISTANT: Thank you for contacting us, have a nice day.