You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you please help me to book a ticket from SFO to JFK?

ASSISTANT: Sure, kindly share your travel dates.

USER: My travelling dates will be on June 16 to June 18.

ASSISTANT: Do you have any connection limit?

USER: I need a direct flight.

ASSISTANT: Is there any other specifications?

USER: I would prefer normal-cost airline and I want to return in the afternoon.

ASSISTANT: Please share your name.

USER: Donna Hernandez here.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Thank you for waiting and we have found a flight in economy class with 0 connection in United  airlines and the fare of your flight will be 200. Do you like me to proceed your booking with this flight?

USER: You can proceed to booking.

ASSISTANT: Your booking is done and flight number is 1002.

USER: Thank you for your help.

ASSISTANT: Thanks for reaching us.