You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Mary Allen.

ASSISTANT: How may I guide you today?

USER: 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, can you please share your preferable journey dates?

USER: I would like to depart on Oct 12th and return on Oct 14th.

ASSISTANT: May I know your depart and return time?

USER: My depart time and return time should be evening.

ASSISTANT: Please wait for a minute.

USER: Sure, take your time.

ASSISTANT: I found a ticket for you with price of 100, flight number is 1015 and connection is 1. Is it ok for you?

USER: Yes, please confirm the booking.

ASSISTANT: I confirmed your ticket successfully.

USER: I really appreciate your help, thank you for your service.

ASSISTANT: Thank you for reaching us.