You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Virginia Brown here, can you please help me in booking the ticket from EWR to SEA? As I'm planning to go for seafood festival.

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight?

USER: Sure, my planned departure and return travel dates are 12/07 and 12/09.

ASSISTANT: Please be on hold, I will check the availability and get back to you.

USER: Sure, take your own time.

ASSISTANT: Ok, I found a direct flight for you with price 600. Shall I proceed?

USER: Can you please search for the flights in which the ticket fare is under 500?

ASSISTANT: Sorry to say, no flights were available with your requirements.

USER: That's ok, thank you for giving the information.

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