You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Angela Smith.

ASSISTANT: How may I assist you?

USER: I am planning to visit Washington DC - DCA, please help me in searching a flight ticket from PHL?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: My travelling dates are 01/13 and 01/15.

ASSISTANT: There is a flight with connection 1 and price 300, can I proceed?

USER: Please check I need 200 fare ticket.

ASSISTANT: Sorry, there are no flights found.

USER: Ok, fine thank you for checking.

ASSISTANT: Thank you for choosing us.