We're a database of Q&A from customers (much like StackOverflow :-P) and we're working on a bot to automatically identify the most likely response to a ticket being opened. e.g.

N;Q;A
1;how to recover my password?;Please go to https://.../resetPWD
2;which are the office hours?;office is open 9-13 and 14-18

Basically we want to create suggestions for customer care operators pointing them to known answers.

We're using Amazon AWS as a platform of choice and we'd like to offload this to existing APIs (rather then resorting to deploying a dedicated NPL solution).

To be clear we don't want to write/deploy any code, we just want to use AWS APIs/services

Is there any service which will automatically detect/classify the "most similar request" and allow us to provide suggestions? e.g. some kind of text correlation APIs?

e.g. something like

input: "I lost my password and need to recover it!"
response: "1;how to recover my password?;Please go to https://.../resetPWD"