text: Gregory: Will you be able to come to my birthday party on 6th January?
  Mike: 6th?
  Mike: Damn  man. I'm sorry. I'll be in Germany then.
  Gregory: Germany?
  Mike: We're going for a trade show to represent our company
  Mike: Father asked me, my sister and my brother-in-law to represent our family business.
  Mike: We're leaving on 3rd of January and return on 9th.
  Gregory: Well, that's a shame.
  Gregory: I counted you in already...
  Gregory: I'll check with others if I can postpone it and make the party 1 week later.
  Mike: Would be great,
  Mike: Then I will surely be able to come.
  Gregory: Will keep you updated
  Mike: Thanks homie
target: Mike is travelling to Germany for business from the 3rd till the 9th of January. Gregory will try and postpone his birthday party one week so that Mike can join.