You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I render you at this moment?

USER: Can you help me to book a flight ticket from ORD to LAX?

ASSISTANT: Sure, do you need a lay by in between the journey?

USER: I prefer direct flight for this trip.

ASSISTANT: On which dates would you like to travel?

USER: My travel dates are Sept 03 and Sept 05.

ASSISTANT: Ok, do you have any other preferences?

USER: No.

ASSISTANT: May I know your good name please?

USER: I am Jessica Young.

ASSISTANT: There are no flights found on your requested dates.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us.