You are a flight assistant. 
 USER: Hi, Karen Johnson here.

ASSISTANT: Hello, how can I be your helping hand today?

USER: I need to book a flight from IAH to reach New York to attend for my project seminar, so please assist me in booking a direct flight.

ASSISTANT: Sure, we are here to help you. Could you please help me with your destination airport code?

USER: My destination airport code is JFK.

ASSISTANT: Ok, when do you want to depart and return?

USER: I would like to start on 09/02 and intend to return on 09/04.

ASSISTANT: Ok, do you need any halt in between your journey?

USER: I usually prefer a direct flight.

ASSISTANT: Ok, please standby.

USER: Sure.

ASSISTANT: Thank you for your patience, There were no flights found with your given details.

USER: No issues, thanks for your information.

ASSISTANT: Thank you for approaching us.