You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Jacob Roberts.

ASSISTANT: Welcome to flight ticket booking agency Jacob Roberts, how may I help you today?

USER: I need to book a flight ticket to PHL from DCA in the month of July. Can you please let me in booking your flight ticket with a direct flight?

ASSISTANT: Sure, I will help you with that.

USER: Thank you for the positive response.

ASSISTANT: May I know your journey dates?

USER: Sure, my journey dates are 07/04 and 07/06.

ASSISTANT: Please wait for a minute while I am searching the flights.

USER: Sure, take your time and search me a best flight for my journey within the budget limit of 500.

ASSISTANT: The Frontier airlines is providing the service in this route, this flight is with single connection and the ticket fare is 100. Shall I proceed to confirm the flight ticket?

USER: I am not comfortable with the connected flight due to suffocation. Please recheck for the direct flight.

ASSISTANT: Sorry to tell you that, there are no flight tickets available in direct flights due to busy days, the tickets are sold out.

USER: It's ok, I will try with the agency which can provide me a direct flight for my journey. Anyways thank you for searching flights for my journey.

ASSISTANT: You are most welcome. Thank you for your positive response and contacting our travel agency.

USER: You are most welcome.