You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I render you today?

USER: I need to travel from DCA to PHL, can you help me?

ASSISTANT: Sure, may I know your good name?

USER: I am Kathleen Smith.

ASSISTANT: Could you please share your journey dates?

USER: My trip dates are Nov 16 to 18.

ASSISTANT: Do you prefer a connecting or direct flight?

USER: I need a connecting flight.

ASSISTANT: Are there any more specifications?

USER: I want to depart in afternoon time.

ASSISTANT: Sorry, no flights are available as per your requirements.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you for reaching us.