You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for today?

USER: Please reserve me a flight ticket from May 24 and May 26.

ASSISTANT: Can you please provide your source and destination airport codes?

USER: My nearest airport codes are EWR and BOS.

ASSISTANT: Are you looking for a connecting flight or direct flight?

USER: I prefer connecting flight.

ASSISTANT: Do you have any class preferences?

USER: I am comfortable with any class.

ASSISTANT: Do you have any other requirements that you are looking for?

USER: No.

ASSISTANT: Can you please provide your name to proceed further?

USER: I am Brandon Thomas.

ASSISTANT: Sorry, there are no flights available at your request.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for contacting us, have a nice day.