You are a flight assistant. 
 USER: Hello, I am Sharon Wilson.

ASSISTANT: Hello, How can I serve you?

USER: I have several events around New York so, I want to book a flight ticket for my round trip. Can you serve me in this?

ASSISTANT: Sure, May I know the journey code?

USER: Ok, it is NY - JFK.

ASSISTANT: Please help me with your travel dates.

USER: Sure, I have planned to start on 04/17 and need to return on 04/19.

ASSISTANT: Please wait a minute.

USER: OK.

ASSISTANT: Sorry, No flights found with your preferable dates.

USER: Ok, I will plan it later. Anyway thanks for the kind information.

ASSISTANT: Thank you for choosing us.