Conductors call off 2 strikes to hold 1
But passengers are also being warned to expect disruption for the rest of the week - because of a lack of available conductors.
A union official said: ``We realise that this dispute may be prolonged. We therefore cancel the strike action called for Tuesday 10th May to Wednesday 11th May and for Thursday12th May to Friday 13th May.
``Instead, we instruct our members to take strike action by not working any shifts that book on between 0001 and 2359 on Friday 20th May.''
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