So this is my current situation:
I was meant to have an important site induction on Friday, with 4 other people from other companies.
One of our clients asked me to come to their office, in another city, on that Friday.
So I re-organise the inductions with everyone to be on Thursday instead (and they have rescheduled things around this).
4 hours after rescheduling everything, the client now tells me that they want me there on Thursday and *maybe* Friday