You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I would like to travel from PA - PHL to DC - DCA.

ASSISTANT: Ok, can you share dates of travelling which you have planned?

USER: My travelling dates are 08/01 and 08/03.

ASSISTANT: Please give me a momnt.

USER: Ok.

ASSISTANT: Sorry, there is no flight scheduled as per your plan.

USER: Ok, thank you for the information.

ASSISTANT: For our reference, can I know your good name?

USER: I am Brian Martinez.

ASSISTANT: Thank you Brian for approaching us.

USER: Thank you.