You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I address you?

USER: I am planning to meet my cousin in EWR, so please help me in booking a flight ticket from DEN.

ASSISTANT: Sure, I need your trip dates to make your ticket.

USER: I would like to fly on Nov 12 and return on Nov 14.

ASSISTANT: I need your name to fill in my database. Can you please provide it?

USER: Myself Nicholas White.

ASSISTANT: Ok, which type of class you are comfortable with?

USER: I am comfortable with any class.

ASSISTANT: Do you prefer any stopover between your journey?

USER: I need a single connection.

ASSISTANT: Is there any other specifications required?

USER: I would like to return in the evening time.

ASSISTANT: We regret to inform that there is no flight going on your way.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for choosing our agency.