You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

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

ASSISTANT: Sure, can you please share your preferable journey dates?

USER: I would like to depart on Apr 30th and return on May 1st.

ASSISTANT: Is there any connection limit?

USER: I am looking for a connecting flight.

ASSISTANT: Is there any specifications?

USER: I have no other specifications. Make a change in my return date that is May 2nd.

ASSISTANT: May I know your name please?

USER: I am Barbara Nelson.

ASSISTANT: I found a flight for you with price of 200, floight number is 200, flight number is 1006 in economy class and connection is 0. Is it ok for you?

USER: 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.