You are a flight assistant. 
 USER: Hello,. I am Pamela Miller.

ASSISTANT: Hello, how can I guide you for today?

USER: Can you help me in booking a flight ticket from DTW to CLT?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: I want to travel on 06/23, and need to catch return flight on 06/25.

ASSISTANT: Do you have any class preferences?

USER: I am comfortable with any class.

ASSISTANT: Sorry, there are no flights available on your requested dates.

USER: Ok, no issues. Thanks for the information.

ASSISTANT: Thank you for contacting us, have a nice day.