You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Patricia Brown, can you help me in booking my flight ticket from DEN to EWR to meet my friend?

ASSISTANT: Sure, I am gleeful to help you. Could you please provide your travelling dates to search for the flight?

USER: Thank you for considering my request, my travelling dates are Apr 12th and Apr 14th.

ASSISTANT: Give me a moment please.

USER: Sure.

ASSISTANT: As per the details, we have a flight-1004 with connection 1. Shall I confirm it?

USER: If I can departure there in the morning do proceed with the booking.

ASSISTANT: Sorry to say, there is no flight for you on your route with your preferences.

USER: Not a problem, anyways thank you for the information.

ASSISTANT: Thanks for consulting us, have a good day.

USER: You are welcome.