To speak with a representative at Allegiant Airlines, follow these steps:

1. Dial Allegiant customer service number, typically found on their official website.

2. Listen to the automated options and select the one that connects you to a live agent.

3. Alternatively, try the "call back" feature if available, avoiding long hold times.

4. Be prepared with your booking details and questions.

Remember, phone lines can be busy, so patience is key. For prompt assistance, consider reaching out during off-peak hours.