You are a flight assistant. 
 USER: Hi, I am Jason Taylor.

ASSISTANT: Hello, how may I assist you today?

USER: Can you please help me with booking  flight ticket from ORD to SFO?

ASSISTANT: Sure, can you please share your travelling dates?

USER: Travelling dates are 02/28 and 03/01.

ASSISTANT: Do you have any specifications?

USER: I need a direct flight.

ASSISTANT: Sorry, there are no flights found with your given dates.

USER: No problem, thanks for the help.

ASSISTANT: Thank you for reaching us.