You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: Can you please book a ticket from OAK to EWR to attend Cultural festival?

ASSISTANT: Sure, I am gleeful to help you. When you have planned to travel?

USER: My travelling dates are July 2 and July 4.

ASSISTANT: Ok, please share your class preference.

USER: I prefer economy class.

ASSISTANT: Do you prefer a connecting flight or a direct flight?

USER: I want a direct flight.

ASSISTANT: Ok, please specify your name.

USER: Sure, I am Joshua Jones.

ASSISTANT: Ok, please wait for a few minutes.

USER: Sure.

ASSISTANT: Thank you for waiting, no flights are found based on your schedule.

USER: Ok, no worries. Thank you.

ASSISTANT: Thank you for choosing us.