Can I ask a question . When applying for an OA visa and it asks for date of travel flight number etc and accommodation ASQ details etc what do you put in as I want to apply now but may not travel for two months yet do you just put your possible flight and accommodation? Would welcome some advice

I'm just filling in the o-a muti entry visa online application and have hit a problem with the travel details section because, as yet, I haven't arranged flights or accommodation. Previously, the paper application form required an estimated date of arrival. Is there a way around this because if I book flights/accommodation and my visa application is rejected, I will have wasted my money.