You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I want to enjoy with my friends at Chicago, ORD. Can you please help me to book a ticket?

ASSISTANT: Sure, may I know your name please?

USER: Sure, I am Linda Perez.

ASSISTANT: may I know your source airport code please?

USER: My source airport code is CLT.

ASSISTANT: May I know on which dates your willing to travel?

USER: My scheduled dates are Aug 12 and Aug 14.

ASSISTANT: Is there any specific class preference for you?

USER: No.

ASSISTANT: Do you have any other specifications please?

USER: Yes, I want single connected flight.

ASSISTANT: Sorry Perez, there is no flight found as per your travelling details.

USER: Ok, no issues. Thank you for your service.

ASSISTANT: Thank you for reaching us.