You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you please help me to book a flight ticket from EWR to CLT?

ASSISTANT: Sure, please share your journey dates?

USER: My journey dates are Apr 1 to Apr 3.

ASSISTANT: Do you have any specifications?

USER: I need a single connection of flight.

ASSISTANT: Is there any class preferences?

USER: I would like to prefer business class.

ASSISTANT: May I know your good name?

USER: Betty Phillips here.

ASSISTANT: Sorry, no flights found on your given details.

USER: No problem, thanks for your information.

ASSISTANT: Thank you for choosing us.