Range for the number of days between the date of the booking and the start of the itinerary.

[Proto definition ![GitHub](https://developers.google.com/site-assets/logo-github.svg)](https://github.com/googleapis/googleapis/blob/master/google/ads/googleads/v26/resources/conversion_value_rule.proto)

| Fields ||
|---|---|
| ## `max_days` | `int32` Maximum number of days between the date of the booking the start date. |
| ## `min_days` | `int32` Minimum number of days between the date of the booking the start date. |