I'm planning a trip on the Glacier Express Excellence Class. What is the minimum age for children, the policy for combining the Excellence Class surcharge with other tickets or passes (including specific examples), and the earliest booking window?
Navigate to 'https://glacierexpress.ch/en/' (or 'https://glacierexpress.ch/de/' and switch to English). Navigate to the 'FAQ' section of the website. On the FAQ page, locate and open the question regarding seat reservations for children to find the minimum age requirement. On the FAQ page, locate and open the question regarding buying online tickets to find information on the Excellence Class surcharge policy and the earliest booking window. Synthesize all gathered information to answer the task.
The agent successfully navigates to the 'FAQ' page. The agent states the minimum age for children in Excellence Class as 6 years. The agent states that the Excellence Class surcharge is only valid in conjunction with a valid 1st class Glacier Express ticket or a valid 1st class pass (e.g., Swiss Travel Pass, Eurail Pass, Interrail Pass). The agent states that Excellence Class tickets can be booked up to 90 days in advance.