You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I need to book a flight ticket from JFK to LAX. Can you please book a direct flight ticket?

ASSISTANT: Sure, can you please provide your journey dates?

USER: My journey dates are Aug 17 and Aug 19.

ASSISTANT: Do you have any other specifications to be met?

USER: I prefer a normal cost airline.

ASSISTANT: Are you looking for any preferred class?

USER: No.

ASSISTANT: Can I have your name to proceed further?

USER: I am Mary Brown.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for your valuable time, unfortunately no flights available on that route.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for reaching us.