Hello @chitrag,
WP travel plugin uses the map from where you can enter the location name and it will pin down that location in the map.
Screenshot:
http://prntscr.com/jo0w4j
http://prntscr.com/jo0ww1
Also, to make the ap work you need to enter the API ket first by going to Admin Panel > trips > Setting > General
For any confusion you can refer to plugin official documentation given below:
http://wptravel.io/documentations/user-documentation/settings/general/
http://wptravel.io/documentations/user-documentation/how-to-create-your-very-first-trip/locations/
HOpe this helps.
let us know if you have any confusion further.
Thank you.
Regards!!