You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Can you help me to book a business class flight ticket?

ASSISTANT: Sure, may I know your airport codes?

USER: My airport codes are AUS and EWR.

ASSISTANT: Can I know your travelling dates?

USER: My travel dates are Feb 08 and Feb 10.

ASSISTANT: Do you need any specifications?

USER: I prefer connecting flight for this trip.

ASSISTANT: May I know your name?

USER: I am Melissa Edwards.

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

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching our service.