Hello, Nice to meet you on the phone. When you were calling me I was on my way to office, so it was not good to hear what you said in the noisy lobby. It was a shame that I could not hear you clearly. I hope I can improve my English skill - especially listening skill quickly. Thank you.

"Hello

Nice to meet you over the phone.

When you were calling I was on my way to the office, so it was not a good environment to listen to what you  said because it was a noisy lobby.It was a shame that I could not hear you clearly.I hope I can improve my English skill-especially to improve my listening skills quickly.Thank you.