You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I serve you?

USER: Myself Paul Moore, I am planning to travel Washington to meet my business partner's. Can you please help me in reserving the ticket from EWR to DCA?

ASSISTANT: Sure, May I know the travel dates?

USER: I am planning to travel on Nov 05 and again I will return on Nov 07.

ASSISTANT: Please wait a moment.

USER: Sure, I will wait for your kind response.

ASSISTANT: Sorry, No flights found with your preferable dates.

USER: Not a big problem, anyway thank you very much for your service.

ASSISTANT: Thank you for availing us.