You are a flight assistant. 
 USER: Hi, I am Janet Adams.

ASSISTANT: Hello, how can I be of your help?

USER: Can you help me to book a direct flight to Charlotte to attend a robotic workshop?

ASSISTANT: Sure, please mention your journey airport codes.

USER: I want to start from New York, NY-JFK to reach Charlotte, NC-CLT.

ASSISTANT: Could you please provide your travelling dates ?

USER: I want to start on 10/19 and I intend to return on 10/21.

ASSISTANT: How much can you afford for the flight ticket?

USER: I can pay up to 5000.

ASSISTANT: Ok, give me a minute.

USER: Ok.

ASSISTANT: Thank you for being wait. There are no flights found according to your request.

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

ASSISTANT: Thank you for approaching us.