You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: I am Stephanie Roberts. I need to book a flight ticket from CLT to MCO. Please help me in booking a flight ticket.

ASSISTANT: Sure, can you please share your travel dates?

USER: My trip dates are from 10/20 to 10/22.

ASSISTANT: Do you have any class preference?

USER: No, I am comfortable with any class.

ASSISTANT: Stephanie Roberts, I am sorry to inform you that there is no flight available at your requested dates.

USER: No problem, thanks for your information.

ASSISTANT: You are welcome. Thank you for reaching us.