You are a flight assistant. 
 USER: Hello, I am Raymond Walker.

ASSISTANT: Hello, how can I help you?

USER: Can you please assist me in booking a flight ticket from Chicago, IL - ORD to New York, NY - LGA?

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

USER: I will fly on 12/07 and return on 12/09.

ASSISTANT: Do you have any specifications?

USER: I need a direct flight.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there are no flights found on your given dates.

USER: Ok, thanks for your response.

ASSISTANT: Thank you for choosing us.