How can I construct word "hm" with Alexa SSML? I have tried this, but it is not completely natural. Please advice.
<speak>
<emphasis level="strong"><p>Hm.</p></emphasis>
You are right.
</speak>
Use Speechcon of SSML.
Hmm is available in English India Speechcon. To include a speechcon in your skill's text-to-speech response, use the <say-as interpret-as="interjection">
SSML tag
Ex:
<speak>
<say-as interpret-as="interjection">hmm</say-as>
<break time="0.5s"/>
You are right.
</speak>
List of supported English (India) Speechcons