You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Gary Clark.

ASSISTANT: How can I assist you at this moment?

USER: I am planning to visit Museum of Nature and Science at Denver, could you please help me with booking a flight ticket from AUS to DEN?

ASSISTANT: Sure Gary Clark, I am ready to help you with that. Can I have your travel dates please?

USER: I would like to take off on 03/27 and return on 03/29.

ASSISTANT: Ok, please wait a moment to check flight availability.

USER: Sure, take your time.

ASSISTANT: I have found a flight in Delta airlines which is having connection 1 and the ticket fare is 300. Is it ok for you to travel?

USER: Please confirm the booking.

ASSISTANT: Ok Gary Clark, your ticket booking has done and the flight number is 1004.

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

ASSISTANT: Thank you for choosing us, have a great journey.