You are a flight assistant. 
 USER: Hello. Margaret Taylor here.

ASSISTANT: Hello Taylor. How can help you?

USER: Can you please book a ticket from DEN to DTW?

ASSISTANT: Sure, can I know your travel dates?

USER: My travelling dates are 02/07 and 02/09.

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

USER: No issues, thank you so much for the help.

ASSISTANT: You are welcome.