You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I am Joseph Clark. I want to travel from CLT to ATL to meet my friend, will you help me to book my ticket?

ASSISTANT: Sure. May I know your travelling dates?

USER: Travelling dates are 04/20 and 04/22.

ASSISTANT: Do you have any preferences?

USER: I need a halt in between journey.

ASSISTANT: Thanks for your details. There is  no flights found on your data.

USER: Ok, thank you.

ASSISTANT: Thank you.