You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Donna Carter here.

ASSISTANT: How can I assist you?

USER: I want to attend my convocation ceremony, so please book my ticket from EWR to DFW.

ASSISTANT: Sure, can I know the travel dates please?

USER: My itinerary dates are Feb 10 and Feb 12.

ASSISTANT: Could you please provide the departure and return time?

USER: I want to depart in the evening and return in the afternoon.

ASSISTANT: Do you have any requirements?

USER: I need a connecting flight.

ASSISTANT: Ok, wait a moment please.

USER: Sure.

ASSISTANT: There is a connecting flight in Spirit airline which depart at 22.00 PM and return at 17.00 PM, can I book it?

USER: Please book my ticket.

ASSISTANT: Your ticket has been booked with flight number 1000 in economy class.

USER: Thank you.

ASSISTANT: Thank you for approaching us.