You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: Debra Thompson here. I want to book a flight from ORD to CLT, can you help me to attend my meeting on this weekend?

ASSISTANT: Sure, I am here to help you with that. Can I know your itinerary dates?

USER: My travelling dates will be from 07/25 to 07/29.

ASSISTANT: Ok, please wait for a minute.

USER: Sure, please check for 1 connection flight.

ASSISTANT: Sorry to say that, there are no flight's available based on your travelling dates.

USER: Oh! That's fine, than you for checking anyways.

ASSISTANT: Thank you for reaching us.

USER: You are most welcome.