You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: I would like to book a flight ticket to Chicago to take a part in scuba driving, could you please help me to book a flight ticket with single connection?

ASSISTANT: Sure, We are here to assist you. May I know your name?

USER: Amanda Williams.

ASSISTANT: Please share me your airport codes.

USER: My source point is EWR to BOS.

ASSISTANT: Can I know your travelling dates?

USER: I would like to travel on 08/26 to return on 08/28.

ASSISTANT: Is there any other requirements?

USER: Yes, I need a business class with connecting flight.

ASSISTANT: Please wait a while.

USER: Sure.

ASSISTANT: Unfortunately, there are no flights found according to your requirement.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for choosing us.