You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

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

ASSISTANT: Sure, can you share your journey dates?

USER: I want to travel on 05/03, and return on 05/05.

ASSISTANT: Do you have any preferences?

USER: I want to return in the afternoon time.

ASSISTANT: May I know your name?

USER: I am Melissa Harris.

ASSISTANT: Sorry, there is no flight on your given dates.

USER: Ok, no problem.

ASSISTANT: Thank you for reaching us.

USER: Thanks for the information.