You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what kind of help you are looking for?

USER: Can you help me to book a flight ticket from IAD to JFK?

ASSISTANT: Sure, on which dates you wish to travel?

USER: My travel dates are Apr 16 and Apr 18.

ASSISTANT: May I know your name please?

USER: I am Emma Wright.

ASSISTANT: Can you please let me know your connection limit?

USER: I prefer connecting flight for this trip.

ASSISTANT: Do you have any more preferences?

USER: I would like to depart in the afternoon time.

ASSISTANT: We found a United Airlines, flight number 1020, price is 100 in economy class, with direct flight. Shall I proceed?

USER: Please proceed to book my flight ticket in this airlines.

ASSISTANT: Your ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for choosing us.