You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you today?

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

ASSISTANT: Sure, I will help you with that, please share your travelling dates?

USER: My travel dates are 11/08 and 11/10.

ASSISTANT: May I know your name please?

USER: Myself Donna Lee.

ASSISTANT: Lee sorry for the inconvenience, no flights as per your details.

USER: No problem, thanks for checking.

ASSISTANT: It's my pleasure, have a nice day.