You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I am Thomas Green want to attend a business conference at New York, can you help me to book a direct flight?

ASSISTANT: Sure, could you help me with your journey dates?

USER: Sure, my travelling dates will be 08/01 and 08/03.

ASSISTANT: Could you please share your airport codes?

USER: Sure, I want to fly from EWR to JFK.

ASSISTANT: Thank you for your details. Sorry, there is no flight as per your details.

USER: That's ok, thank you.

ASSISTANT: Thank you for choosing us, have a nice day.