You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Ruth Green.

ASSISTANT: How may I aid you today?

USER: I am planning to visit New York. Can you please book me a ticket from ORD to JFK?

ASSISTANT: Can you please provide me your travelling dates?

USER: My preferable journey dates are from 12/05 to 12/07.

ASSISTANT: Please wait a moment.

USER: Please search for direct flight on this route.

ASSISTANT: Sorry, there are no flight running on your route.

USER: Ok, not an issue. I will find any alternate for this trip. Thank you for providing information.

ASSISTANT: Thank you for opting our service.