You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you today?

USER: Please book a flight ticket from DEN to EWR for my business conference.

ASSISTANT: Sure, let me know your travel dates?

USER: Thank you, my boarding is on Jan 13 and please book my return ticket on Jan 15.

ASSISTANT: Do you have any connection limit?

USER: Yes, I would prefer single connection.

ASSISTANT: Is there any other preferences?

USER: No.

ASSISTANT: May I know your good name?

USER: Sure, my name is Virginia Robinson.

ASSISTANT: We found a Hawaiian airline with fare 100 and class is economy of flight number 1001. Shall I proceed with booking?

USER: I am ok with this flight, you can proceed with booking now.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for your assistance.

ASSISTANT: Thank you for availing us.