You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Laura Moore here.

ASSISTANT: How may I assist you?

USER: Could you book my ticket in a direct flight? As I have some urgent work.

ASSISTANT: Sure, I will help you. May I know your travelling dates?

USER: My itinerary dates are 12/17 and 12/19.

ASSISTANT: Fine, let me know your airport codes too.

USER: My genesis and terminus airport codes are LGA and ORD.

ASSISTANT: Just a minute.

USER: Ok.

ASSISTANT: Sorry, there is no direct flight for you on your route.

USER: No problem, thank you.

ASSISTANT: Thanks for reaching us.