You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I am planning to travel from PHL to ORD, help me in booking a flight?

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

USER: My travelling dates are Dec 01 to 03.

ASSISTANT: Do you have any connection limit?

USER: I prefer travelling in direct flight.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: Can I know your good name?

USER: I am Katherine young.

ASSISTANT: Sorry, no flights are available on your travel dates.

USER: That's ok. thank you.

ASSISTANT: Thank you for reaching us.