You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I serve you now?

USER: I am heading to Los Angeles, CA - LAX to enjoy the private helicopter tour over the long beach with my partner. Please book me a ticket from Las Vegas, NV - LAS.

ASSISTANT: Sure. May I know your price limit?

USER: Can you help me to book a ticket from Chicago, ORD? Price should not cross 1000.

ASSISTANT: Let me know your journey dates?

USER: Dates are 09/02 and 09/04.

ASSISTANT: Your good name please.

USER: Alexander Lopez here.

ASSISTANT: Thanks for sharing the details. There are no flights running on your route due to abnormal weather conditions.

USER: No problem, Thank you.

ASSISTANT: Thank you for approaching us.