I have a UA flight into and out of DEL. I'm planning to travel from there to KTM. I can either book with Air India directly on their web site, or through Orbitz. The advantage of using Orbitz is that it's charged in USD saving the foreign currency fee with my credit card company, the disadvantage is that something may get lost in communications with Air India, and could cause even more problems if there are irrops. Any experience or advice?