You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,.

USER: I am Margaret White.

ASSISTANT: How can I aid you?

USER: I need to book a flight ticket from JFK to DFW, Can you please help me for booking?

ASSISTANT: Sure, may I know your planned travel dates?

USER: I would like to travel on 10/22 to 10/24.

ASSISTANT: Do you prefer either a connecting flight or a direct flight?

USER: I need a connecting flight.

ASSISTANT: How much is your budget for this trip?

USER: I can pay up to 500.

ASSISTANT: Sorry Margaret White, there were no flights found with your given information.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for connecting with us.