You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: Can you please book a flight ticket from PHL to BOS?

ASSISTANT: Sure, I am here to help you. Can I know your travelling dates to search for the flight?

USER: My travelling dates are Apr 22nd and Apr 24th.

ASSISTANT: May I know your connection limit?

USER: I prefer only single connection.

ASSISTANT: Do you have any requirements?

USER: No.

ASSISTANT: May I know your name?

USER: Catherine Martin.

ASSISTANT: There is a connecting flight 1025 of Spirit airlines, can I proceed?

USER: Please proceed with the booking.

ASSISTANT: Your booking is done in economy class.

USER: Thank you for your service.

ASSISTANT: Welcome.