Dreams involving transportation, such as airplanes and buses, often symbolize transitions or changes in your life. The airplane represents a journey that is more significant or ambitious, while the bus signifies a more grounded, communal experience. This combination could suggest that you are navigating through a significant phase of your life, possibly relating to your career or personal development.

Talking to your ex-colleague on the phone in the dream may highlight the importance of this relationship in your life. Since you mentioned him as an inspiration during your interview, this could indicate that you are reflecting on the support and influence he has on your aspirations and career goals.

Overall, this dream might represent your current feelings about your career path and the connections you have that help guide and motivate you. It could be a reminder to continue valuing the relationships that inspire you as you navigate your journey. Consider how you can further integrate these influences into your professional life moving forward.