You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

USER: I am Nicholas Lopez. I am planning to visit reading terminal market in Philadelphia, PHL. Can you help me to book a connecting flight?

ASSISTANT: Sure, may I know your travelling dates?

USER: My travelling dates are Feb 03 and 05.

ASSISTANT: Could you share your source point?

USER: I want to board from Atlanta, ATL.

ASSISTANT: Do you have any class preference?

USER: I am comfortable with any class.

ASSISTANT: May I know your specifications?

USER: I need to depart in the afternoon time.

ASSISTANT: Sorry, there are no flights available.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for choosing us.