You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you?

USER: I am Stephen Robinson. Can you help me in booking a ticket from ORD to ATL?

ASSISTANT: Sure. Please share your travelling dates.

USER: My planning dates are from 11/03 to 11/05.

ASSISTANT: Ok, give me a minute.

USER: Sure.

ASSISTANT: There are no flights found according to your requirements.

USER: That's fine.

ASSISTANT: Thank you for opting us.

USER: Thank you.