You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: I am Jeffrey Campbell. I am planning to visit Central Park at New York, could you please help me with booking a flight ticket from DEN to EWR?

ASSISTANT: Sure, I will help you with this. Can you please provide your journey dates?

USER: I would like to depart on Dec 21st and return on Dec 23rd.

ASSISTANT: Do you need any halt in between your journey?

USER: I am looking for a connecting flight in economy class.

ASSISTANT: UA airlines with connecting flight is available on this route with a ticket fare of 100, shall I book your ticket?

USER: Make sure that my return time is morning.

ASSISTANT: Jeffrey Campbell, your ticket is booked in flight number 1000.

USER: Thank you for your service.

ASSISTANT: Thank you and have a safe journey.