You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you?

USER: I am Sharon Roberts, want to travel for CLT. Will you please help me in booking a ticket from ATL to CLT?

ASSISTANT: Sure Sharon, I can help you. Would you please provide your journey dates?

USER: Yes, my travelling dates are from 11/11 to 11/13.

ASSISTANT: Sorry Sharon, we could not found any flights on your requested dates.

USER: Oh! it's Ok. Thank you for your help.

ASSISTANT: Thank you for reaching us with your query.