You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Mark Jones.

ASSISTANT: How can I assist you?

USER: Can you help me in booking the ticket from DTW to BOS?

ASSISTANT: Sure Jones, can I know the travel dates please?

USER: My planning dates are from 10/04 to 10/06.

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

USER: That's ok. Thank you.

ASSISTANT: Thank you for approaching us.

USER: You are welcome.