When you want to ask someone if they are available for a call, it's best to be polite and considerate of their time and schedule. Here's a simple and respectful way to ask:
"Hey [Name], I hope you're doing well. Are you available for a call sometime today/tomorrow/this week (or mention a specific date and time)? I'd like to chat about [mention the topic or reason for the call]. Let me know what works for you, and we can find a convenient time. Thanks!"
This message shows that you care about the person's well-being and acknowledges that they might have other commitments. By suggesting a specific topic or reason for the call, you provide context and make it easier for them to decide if they can make time for it. Additionally, offering to find a convenient time shows flexibility and consideration for their schedule.
Remember to be open to their response and understanding if they are unable to make time for the call at that moment. People have various responsibilities and commitments, so it's essential to be respectful of their time constraints.