   neutral   If I have time, I will come again.     neutral   You are welcome at any time.  
    neutral   Thank you for your hospitality. I hope I didn ’ t cause you too much trouble during my stay.     neutral   You are most welcome.  
    neutral   I ’ m afraid I have to go now. The plane will take off soon.     neutral   
 Keep up with me then. 
 Keep in touch!    happiness Goodbye. Have nice day... and good bye,