You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I want to book a ticket from ORD to ATL, can you help me?

ASSISTANT: Sure, I am here to help you. Could you please share your travelling dates to search a flight?

USER: My travel dates are 07/10 and 07/12.

ASSISTANT: May I know your name?

USER: Myself Ronald Jackson.

ASSISTANT: Sorry, there is no flight available for you.

USER: No problem, thanks for checking.

ASSISTANT: Thank you for choosing us.