You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Please book me a ticket from DTW to DCA to meet my family.

ASSISTANT: Sure, I am here to assist you. Can you please share your planned journey dates?

USER: I have planned to travel on July 28th and return on July 30th.

ASSISTANT: May I know your name?

USER: Myself Michael Evans.

ASSISTANT: Let me know your connection limit.

USER: One connection limit.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: Please, wait for a while.

USER: Ok.

ASSISTANT: Thank you for waiting. There were no flights available on your desired dates.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for approaching us.