You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today from my end?

USER: I would like to celebrate this New Year with my friends, please help me in booking a ticket from DEN to PHL.

ASSISTANT: Sure, I am here to help you out. Please provide me your trip dates.

USER: My trip dates are on Dec 30 and Jan 1.

ASSISTANT: May I know your name to proceed further?

USER: My name is Christine Brown.

ASSISTANT: Christine Brown, do you have connection limit?

USER: Yes, I need a flight with single connection.

ASSISTANT: Sorry Christine Brown, there is no flight in your route as per your request.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Thank you for reaching us.