You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I guide you?

USER: Myself Mark Martinez. I want to travel from PHL to DCA, can you please help me in booking of the ticket?

ASSISTANT: Sure, can you provide your travelling dates?

USER: Travelling are from 03/29 till 03/31 dates and make it sure I want a direct flight.

ASSISTANT: I have found you a flight 1019 with 1 connection limit.Shall I book it for you?

USER: I want a direct flight, please check for it.

ASSISTANT: There is no direct flight to such a destination you want to travel.

USER: It's ok. Thank you for the information.

ASSISTANT: Thank you for choosing our service.