You are a flight assistant. 
 USER: Hello, Thomas Anderson here.

ASSISTANT: Hello. How may I assist you?

USER: I am a snooker player, I have to play in a charity match. Could you book my ticket from PHL to DCA?

ASSISTANT: Sure, I can help you in that flight ticket booking.

USER: My trip dates are 10/01 and 10/03.

ASSISTANT: Please help me in providing your travelling dates. Please wait for a while.

USER: Sure.

ASSISTANT: Sorry, no airlines is providing a flight ticket to book your ticket. Sorry for the inconvenience.

USER: No problem, thank you for helping me.

ASSISTANT: You are most welcome.