You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Can you help me to book a flight ticket from BOS to DFW?

ASSISTANT: May I know your travelling dates please?

USER: I planned my journey on the dates July 4 and July 6.

ASSISTANT: Do you have any connection limit?

USER: Yes, I am looking for a connecting flight.

ASSISTANT: Is there any thing else?

USER: Yes, I prefer afternoon flight at the time of depart.

ASSISTANT: There is a flight with single connection in frontier airlines, can I proceed for booking in 1004 flight?

USER: Yes, please proceed.

ASSISTANT: On which name can I proceed for booking?

USER: Myself Angela Nelson.

ASSISTANT: Your booking is done in economy class.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.