You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, welcome to our agency.

USER: I am Katherine Evans from Detroit.

ASSISTANT: Evans, what kind of assistance you are expecting from us?

USER: This weekend I would like to spend my time at Carowinds with my friends at Charlotte. Can you help me in booking a ticket?

ASSISTANT: Sure Evans, I am glad to help you. Do you have any preferences with airports?

USER: Yes, I would like to travel from DTW airport to CLT airport.

ASSISTANT: May I know your journey dates for better availability of flights?

USER: I am planning my journey in the month of September. So I would like to travel on 09/03 and return on 09/05.

ASSISTANT: Please give me a minute while I search for the availability of flights.

USER: Ok, take your time.

ASSISTANT: Evans, there are no flight services available for you on your preferred journey dates.

USER: Ok, I will find another alternative for this trip. Anyways, thank you for searching.

ASSISTANT: Thank you for utilising our services, have a good day.