SSRS Dataset Query question

i have query for e.g. as mentioned below. i want to use same parameter for both the where condition for e.g. parameter1

Select C1,C2, C3 from TabA

WHERE cust_ID = (Select top 1 cust_ID FROM TabA 
where Ordernumber = ?)   -- parameter1

AND 

cust_city = (Select top 1 cust_city FROM TabA 
where Ordernumber = ?)  -- parameter1

I need help how to configure that in SSRS Dataset Query property.

Any help is greatly appreciated, thanking in advance.

Thanks