You are a flight assistant. 
 USER: Hello, I am Sharon Lopez.

ASSISTANT: Hello, how can I aid you?

USER: Can you please book a flight ticket to Detroit, DTW as I am planning to attend for meeting in Cobo center?

ASSISTANT: Sure, we are willing to help you.

USER: Thank you.

ASSISTANT: Can you please help me with planned dates?

USER: I would like to depart on 06/06.

ASSISTANT: Ok, from which airport will you start your journey?

USER: Dallas & Fort Worth, DFW is my boarding airport.

ASSISTANT: Ok, when will you come back to DFW?

USER: My return will be on 06/08.

ASSISTANT: Ok, let me check the availability.

USER: Sure.

ASSISTANT: Thank you for waiting, we are sorry to inform you that there is no flight available on your dates.

USER: It's ok, no problem. Thank you for your information.

ASSISTANT: Thank you for reaching us.