You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Kathleen Collins here.

ASSISTANT: How can I help you?

USER: Can you please book a flight from ORD to CLT?

ASSISTANT: Please provide your journey dates.

USER: Sure, my journey dates are from 05/31 to 06/02.

ASSISTANT: Sorry, no flights found for your travelling dates.

USER: Ok, no problem. I will consult another agency for booking. Thank you for the information.

ASSISTANT: Thanks.