You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I am planning to attend music concert at OAK, can you please help me with booking a flight ticket from EWR?

ASSISTANT: Sure, let me know your travelling dates.

USER: I would like to take off on Aug 11 and return on Aug 13.

ASSISTANT: Do you want connecting flight?

USER: I am looking for a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: I prefer business class.

ASSISTANT: May I know your name please?

USER: My name is Virginia White.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you for opting us.

USER: You are welcome.