Hello, I need to schedule a meeting with John.
Can I get your name, please?
This is Alexis
For what time should the meeting be scheduled?
7 pm and I'll need 2 hours.
What day did you have in mind for the meeting?
Tuesday works best for me.
Unfortunately John is not able to make Tuesday @ 7 pm.
Would you like to try scheduling the meeting for a different day or time?
Try Thursday at 9 pm. 
Unfortunately John is not able to make Thursday @ 9 pm.
Would you like to try scheduling the meeting for a different day or time?
Is John trying to avoid me? Thursday at 2 pm is my only slot left.
Fantastic, your meeting with John has been successfully scheduled for Thursday, 2 pm-4 pm.
Finally. Thanks for the assistance.
Thank you and goodbye.