Open with
Hi, I'd like to book an appointment.
Then say
- I'd like to bring him in because he's off his food.
- Do you have anything on tomorrow?
- The name is Alex.
- Is there anything to do before we come?
If they ask
- What kind of animal?
- I'll give you the breed and age.
- Is this your first visit?
- Yes, first time.
- That day is full.
- Then the earliest day you have is fine.
Ending
Great, tomorrow at 4pm. Thank you.