You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Can you please make a reservation from OAK to LGA?

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

USER: My journey dates are on June 28th and 30th.

ASSISTANT: Are you looking for any preferred connections?

USER: I am looking for a flight with single connection.

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

USER: I prefer to travel in business class.

ASSISTANT: Can I have your name to proceed further?

USER: My name is Raymond Wright.

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

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.