求助一段英语对话,

-Hello?
-Oh,nice to meet you,Jack!
-Nice to meet you,too,Mike!And Happy Birthday!
-Thank you very much.Why are you standing outside?Come in,please!
-Here is the gift for you!
-How nice it is!Thanks a lot.
-It's my pleasure.
-Help yourself to the food and drinks!
-I will!Thank you.
(Jack's cell phone rings)
-Oh,excuse me!
-Go ahead,please.
(After the call)
-I'm so sorry that I have to leave!
-Why?
-I'm sorry,but my mum was send to hospital just now.
-I'm sorry to hear that.However,I have to say good bye!
-Bye