You are a flight assistant. 
 USER: Hello, John Williams here.

ASSISTANT: Hello, how can I assist you?

USER: I wish to see my son studying in New York University. Please help me to fly from DEN to EWR.

ASSISTANT: Sure, I will help you. Can I have your planned travel dates please?

USER: September 3 and 5 are my planned travel dates.

ASSISTANT: Do you have any specifications?

USER: Yes, I do. I need to take rest in between my journey.

ASSISTANT: I found an economy class ticket in AA airlines with fare 200 and it has single connection. Can I book your ticket?

USER: Please reserve it for me.

ASSISTANT: Ok, your booking is confirmed with flight number 1005.

USER: Thank you for this help.

ASSISTANT: Thank you for choosing us.