You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I want to book a flight ticket to IAH to meet my cousin. Can you please help me for booking in a business class?

ASSISTANT: Sure, may I know the planned travel dates?

USER: My planned dates are on June 25 and 27.

ASSISTANT: May I know the source airport code?

USER: I am heading from ORD.

ASSISTANT: Please provide me the specifications.

USER: I need a stopover.

ASSISTANT: May I know the name?

USER: Anthony King here.

ASSISTANT: Sorry, there are no flights are available for your desired intent.

USER: Ok, thanks for your information.

ASSISTANT: Thank you for reaching us.