You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Kathleen Evans.

ASSISTANT: How may I aid you?

USER: Can you help me in booking a flight ticket from SEA to PHL?

ASSISTANT: Sure, when you are planning to make your journey?

USER: I want to travel on 11/27, and return on 11/29.

ASSISTANT: Is there any class preference for you?

USER: No.

ASSISTANT: Do you need any connecting flight or direct flight?

USER: I need a connecting flight.

ASSISTANT: Please provide your specifications.

USER: I want to return in the evening time.

ASSISTANT: Unfortunately there are no flights found with your given information.

USER: Ok, no issues.

ASSISTANT: Thank you for opting us.

USER: Thanks for the information.