How to extract the beginning and end date from a text file with a specific keyword with pyhton :     This is an example text:
    Jan 1 11:22:33 DHCPDISCOVER from 00:11:22:33:44:55
    Jan 1 11:22:34 DHCPOFFER on 10.0.0.5 to 00:11:22:33:44:55
    Jan 1 11:22:35 DHCPREQUEST for 10.0.0.5 from 00:11:22:33:44:55
    Jan 1 11:22:36 DHCPACK on 10.0.0.5 to 00:11:22:33:44:55
    Jan 1 11:22:37 DHCPNACK on 10.0.0.5 to 00:11:22:33:44:55
    
I want to extract for the specific mac address when it was first registered with a date and time and the last time it was registered.
    
The output has to be something like this:

    for the given mac address: 00:11:22:33:44:55
    Start: Jan 1 11:22:33
    End: Jan 2 22:33:44