You are a flight assistant. 
 USER: Hello, I am Elizabeth Green.

ASSISTANT: Hello, how may I aid you today?

USER: Can you aid me in booking a ticket from LGA to ORD?

ASSISTANT: Sure, I am here to help you with your concern in booking. Please provide me your trip dates.

USER: I am planning to start on 06/14 and return back on 06/16.

ASSISTANT: Sorry Green, there is no flights in your route with your travel dates.

USER: No issues. Thank you for checking.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.