Traveler: Excuse me; would you please do me a favor?
游客：打扰一下，能帮我个忙吗？

Stranger: With pleasure.
陌生人：非常乐意。

Traveler: I appreciate the building so much. I am wondering if you could take a picture of me against the building.
游客：我非常喜欢这栋建筑物。我想你是不是可以帮我以这建筑物为背景照张相。

Stranger: No problem.
陌生人：没问题。

Notes:
favor n.喜好.喜爱