You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Mark Smith here.

ASSISTANT: How can I help you?

USER: I want to travel in a direct flight to Las Vegas owing to an emergency, so can you please help me in booking a ticket from PHL to LAS?

ASSISTANT: Mark Smith, please share your travelling dates of your following trip.

USER: The travelling dates are from 08/30 to 09/01.

ASSISTANT: Ok, hold on for a moment till I search flight for your journey.

USER: Ok sure.

ASSISTANT: A flight is found by Delta airlines with 1 connection, can I book it?

USER: Yes, proceed booking my ticket.

ASSISTANT: Sorry, no flights with 0 connection are currently available for you.

USER: Please hold on for a moment, I will check myself for once.

ASSISTANT: Sure.

USER: Please don't proceed booking my ticket.

ASSISTANT: Sorry, no flights with 0 connection are currently available for you.

USER: That's ok, no issues.

ASSISTANT: Thank you for choosing our agency.

USER: Most welcome.

ASSISTANT: Have a nice day.