Dear sir/madam: Im delighted you have accepted our invitation to speak at the Conference in [city] on [date]. As we agreed, youll be speaking on the topic XX from [time] to [time]. There will be an additional minutes for questions. Would yo                                Dear sir/madam:I’m delighted you have accepted our invitation to speak at the Conference in [city] on [date].As we agreed, you’ll be speaking on the topic "XX" from [time] to [time]. There will be an additional minutes for questions.Would you please tell me what kind of audio-visual equipment you’ll need. If you could let me know your specific requirements by [date], I’ll have plenty of time to make sure that the hotel provides you with what請(qǐng)柬 you need.請(qǐng)柬Thank you again for agreeing to speak. I look forward to hearing from you.Sincerely yours,[name][title]Dear sir/madam:Thank you for your letter of [date]. I’m glad that you are also going to [place] next month. It would be a great pleasure to meet you at the [exhibition/trade fair].Our company is having a reception at [hotel] on the evening of [date] and I would be very pleased if you could attend.請(qǐng)柬I look forward to hearing from you soon.Yours sincerely,[name]