You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: Can you please book a flight ticket from IAD to EWR?

ASSISTANT: Your travelling dates please?

USER: My trip dates are 12/09 and 12/11.

ASSISTANT: Do you have any specifications?

USER: Yes, I prefer a connecting flight to travel.

ASSISTANT: There is a flight with single connection in Spirit airlines, can I proceed for booking in economy class?

USER: Yes, proceed.

ASSISTANT: On which name can I proceed for booking?

USER: Patrick White here.

ASSISTANT: Your booking is done in 1022 flight.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.