A method of providing at least one journey option computation to user and a journey information computer system is provided. The journey information computer system comprising: a client interface configured to receive a calendar email invitation comprising appointment details and user identity information; a decode module operable to identify and extract the user identity information and the appointment details from the email; a travel information processor configured to compute at least one journey option based on the appointment details together with data received from a least one travel information source; and a communication module configured to send the at least one computed journey option to a user device.