I choose 'Buying Property' but the transfer is supposed to take a week. The delay is not an issue but I am not sure how it will look on my bank statements.
I just transfer $100/US, I selected "purchase property" for the reason and wrote 'Purchase condo" in the reference field. It said the transaction will take 6 days.
Using the US embassy, I applied for and received a visa showing a flight from Indonesia to Thailand. My situation is little complicated and my not apply to you but there seems to be flexibility about what they will accept for flight to Thailand.