Hello , Can I speak to Tom , please ?   I'm afraid he is not in at the moment .   May I ask what time he will come back ?   I think he will come back at 3 p . m . Do you want to call later ? Or would you like to leave a message for him ?   I'd like to leave a message . Please ask him to call me back as soon as he returns . I'm A and he has my number .   OK . I will do that .   Thank you very much . Bye .   You're welcome . Bye . 