Shoud I worry about flying into NRT from Singapore on Delta, and having only two hrs to catch a second flight from NRT on to IAH on Continental? No checked bags, silver status on CO.

And, worst case scenario, if I'm late getting in to NRT due to Delta flight and miss that second Continental flight, will CO likely just put me on a later flight?

Any thoughts? I realize now I should have booked CO the entire trip. Ugh.