Dear [Recipient's Name],
We appreciate you reaching out to us and expressing your concerns regarding your international reservation. Your complaint/query has been escalated to our manager, who will conduct a comprehensive investigation in conjunction with our International Partner. You can expect a response once this investigation has been concluded.
Kindly be aware that, due to varying time zones, it may take up to 72 hours for us to provide feedback. We appreciate your understanding during this time and assure you of our dedication to delivering a thorough response.
Your concerns are of paramount importance to us, and we sincerely value your patience as we address this issue.