The quote request is where most agencies lose people
A prospect willing to give you their information is at peak intent, and the process usually asks for more than it needs before anybody talks to them.
Quote forms in this industry are notoriously long. They ask for details a producer could gather in a two minute conversation, and they ask before any relationship exists.
The abandonment is invisible unless somebody measures it. People start, hit a question they cannot answer from memory, and leave.
The version that works asks the minimum needed to make contact and gathers the rest in conversation, which is also where an agency's actual advantage lies.
Being clear about what happens next reduces hesitation. How quickly somebody will hear back, whether it is a call or an email, and whether a number will be provided at all.
For coverage that genuinely cannot be quoted quickly, saying so is better than implying an instant answer. A prospect who expected a number and got a call three days later is already gone.