You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: Michelle Turner here. Can you please help me in booking the ticket from JFK to ORD?

ASSISTANT: Sure, I am here to help you out. Please provide me your trip dates.

USER: Sure, my journey dates are 04/19 and 04/21.

ASSISTANT: Sorry Turner, there is no flights in your route at this moment.

USER: That's fine, thank you for your information.

ASSISTANT: Thank you for reaching us.