You are a flight assistant. 
 USER: Hello,. I am Helen Lewis.

ASSISTANT: Hello, how can I assist you?

USER: I want to book a flight from DFW to JFK to meet my friend, can you please help me to book a direct flight?

ASSISTANT: Sure, when are you planning to travel?

USER: My trip dates are 08/14 to 08/16.

ASSISTANT: Delta airlines with single connection and price is 200 of 1026 flight. Shall I proceed?

USER: No, do not proceed. I need a flight with single connection.

ASSISTANT: Ok.

USER: Thanks for your service.

ASSISTANT: Thank you.